Underground by Kat Richardson, book cover

Underground Summary

by Kat Richardson

3.76 Goodreads · 142 ratingsHistorical Fiction344 pages13-min summary

A near-death experience grants a P.I. the ability to see ghosts, plunging her into a Seattle underworld investigation of mutilated homeless people and ancient monsters.

As an Amazon Associate, BookBrief earns from qualifying purchases. How we're funded

Synopsis

Covers the whole plot, including the ending.

Harper Blaine, a Seattle private investigator, gains the ability to perceive the paranormal realm after a brief death, becoming a 'Greywalker'. Her new senses are immediately put to the test when her friend Quinton is implicated in a series of gruesome murders among Pioneer Square's homeless population. The deaths are linked to sightings of zombies in Seattle's historic underground city, and Harper discovers the killer is a creature of ancient legend. She must navigate both the living world and the spectral plane to unmask and stop the monster and its master before she becomes their next victim.
Difficulty
Medium
Pacing
Moderate
Mood
Gritty, supernatural, mysterious, dark

Underground Plot Summary

Covers the whole plot, including the ending.

  1. A Disturbing Discovery and a Plea for Help

    Harper Blaine, a private investigator with the ability to perceive and interact with the Grey—the paranormal realm—is approached by her friend, Quinton, a homeless man living in Seattle's Pioneer Square underground. Quinton is disturbed by a series of brutal murders targeting the homeless, whose bodies are found dismembered and drained of blood. He tells Harper he might be connected to the killings, having witnessed strange events and feeling an inexplicable pull towards the macabre. Harper, initially skeptical, agrees to investigate out of concern for her friend and professional duty. Her initial inquiries reveal the grim reality of the victims' lives and the growing fear within the homeless community.

  2. Entering the Underground

    Harper's investigation quickly leads her to the Seattle Underground, the remains of the original city buried beneath modern streets. This submerged world, a haven for the homeless, is also a nexus of Greywalker activity. As Harper navigates its dark tunnels and forgotten storefronts, her Greywalker abilities become more pronounced. She perceives unsettling residual energy, hears faint echoes of past tragedies, and senses an ancient, malevolent presence. Her search for mundane clues soon becomes a hunt for paranormal evidence, confirming Quinton's fears that the killer is not entirely human. The atmosphere of the underground hints at secrets older than the city above.

  3. First Encounters with the Undead

    While exploring a derelict section of the Underground, Harper has her first terrifying encounter with the reanimated dead. She sees what appear to be zombies, shambling figures with vacant eyes, attacking a group of homeless individuals. Using her nascent Greywalker abilities, Harper fends off the creatures, but the experience leaves her shaken. She is convinced she is dealing with something beyond a simple serial killer. This confrontation confirms her understanding that the murders are not just violent acts but part of a ritual, and the victims are being used for a sinister purpose. The presence of the undead confirms the involvement of dark magic.

  4. The Lore of the Ghoul

    Realizing she is out of her depth, Harper turns to her contacts in the paranormal community, specifically Ben, an occult bookstore owner, and other Greywalkers she knows. Through their research and her own study of obscure texts, Harper uncovers the truth: the killer is a ghoul, a creature of ancient legend that feeds on the dead. This particular ghoul, however, is not just a feral beast; it is intelligent, powerful, and seemingly controlled by a master. Lore suggests that ghouls often serve necromancers or other dark practitioners. Harper understands that to stop the killings, she must confront not only the ghoul but also its unseen puppeteer.

  5. Quinton's Connection and a Trap

    As Harper deepens her investigation, she discovers that Quinton's connection to the murders is more significant than he initially let on. He has a hidden past intertwined with the supernatural, and his previous experiences have made him vulnerable to manipulation. The ghoul's master, a powerful necromancer, begins to actively target Quinton, using his vulnerabilities and guilt to lure him into a trap. Quinton, feeling increasingly responsible and desperate to atone, falls prey to the necromancer's plans, believing he can somehow stop the killings on his own. Harper realizes that Quinton is not just a witness but a pawn in the necromancer's larger, darker game, and his life is now in grave danger.

  6. The Necromancer Revealed

    Through Greywalker insights, traditional detective work, and a crucial piece of information from a reluctant informant, Harper finally identifies the necromancer controlling the ghoul. The individual is not a shadowy figure from ancient times but someone embedded within Seattle's mundane society, using their position to facilitate dark rituals. This revelation adds another layer of complexity to the case, as Harper must now navigate both supernatural threats and the real dangers posed by a human being with immense power and no moral compass. The necromancer is intelligent and cunning, anticipating Harper's moves and setting up countermeasures.

  7. A Desperate Rescue Mission

    Upon realizing Quinton has been taken, Harper embarks on a desperate rescue mission. She knows the necromancer plans to use Quinton, or at least his essence, in a powerful ritual, and time is running out. Relying on her Greywalker abilities, her street smarts, and the limited support she can muster, Harper tracks Quinton to a hidden, heavily warded chamber deep within the Underground. The journey is dangerous, as she faces not only the ghoul's minions but also the necromancer's magical defenses. Harper must push her Greywalker abilities to their limits, using her perception of the Grey to navigate traps and bypass protective spells, all while fighting against the clock.

  8. Confrontation with the Ghoul

    Harper finally confronts the ghoul, not just as a fleeting apparition but as a physical, formidable opponent. The battle is visceral and intense, taking place in the confined, eerie spaces of the Underground. The ghoul proves to be incredibly strong and resilient, its attacks fueled by ancient hunger and the necromancer's dark power. Harper, despite her Greywalker advantages, is still largely human and must rely on her wits, agility, and a makeshift arsenal to survive. This fight tests her courage and her growing understanding of how to use her unique abilities in combat, pushing her to the brink of her physical and mental endurance as she fights for her life and Quinton's.

  9. The Final Showdown with the Necromancer

    After dispatching the ghoul, Harper faces the necromancer in a climactic magical confrontation. The necromancer is far more powerful than Harper initially anticipated, wielding dark magic with ruthless efficiency. The battle is a clash of wills and abilities, with the necromancer attempting to overwhelm Harper with spells and dark energy, while Harper uses her Greywalker perception to counter and exploit weaknesses. She must think quickly, adapting her strategies and pushing her Greywalker powers to their maximum, not just to survive but to disrupt the necromancer's ritual and free Quinton. The fight tests her resolve and her understanding of the Grey's offensive capabilities.

  10. Aftermath and Lingering Questions

    With the necromancer defeated and the ghoul destroyed, Harper manages to rescue Quinton, though he is shaken and traumatized. The immediate threat is neutralized, but the experience leaves deep scars. Harper must deal with the mundane aftermath, including the disposal of bodies and the difficult task of explaining events that defy rational explanation. The case solidifies Harper's understanding of her Greywalker nature and the dangerous world she now inhabits. She realizes that her abilities will continue to draw her into similar cases, and she must learn to hone her skills and embrace her unique role. The ending leaves Harper with a sense of purpose, but also an awareness of the constant peril that now defines her life.

Underground Characters

Harper Blaine

Protagonist

A PI who can walk the line between the living and the dead.

Harper Blaine is a pragmatic and resilient private investigator in Seattle. She's tough, cynical, and prefers to deal with facts, but her life changed irrevocably after she died for two minutes and became a Greywalker. This ability allows her to perceive and interact with the Grey, the realm between life and death, and its inhabitants. Despite her initial reluctance and discomfort with her new powers, Harper is fiercely loyal to her friends and possesses a strong moral compass. She is intelligent, resourceful, and capable of both physical and intellectual combat, constantly learning to adapt to her evolving reality.

Relationships: Quinton (friend and client); Ben (informant and friend); Jude (friend and support)

Quinton

Supporting

A homeless man with a mysterious past, implicated in the murders.

Quinton is a homeless man living in the Seattle Underground, a friend of Harper's. He is intelligent, sensitive, and deeply troubled by the murders of his peers. He possesses a hidden past that makes him particularly vulnerable to the supernatural, and he has a unique, if untrained, sensitivity to the Grey. Quinton is initially presented as a victim and a potential suspect, but his role evolves into that of a pawn in the necromancer's scheme. He struggles with guilt and fear, seeking Harper's help out of desperation and trust.

Relationships: Harper Blaine (friend and investigator); The Necromancer (victim and target)

The Necromancer

Antagonist

The powerful, dark magic user orchestrating the ghoul's attacks.

The Necromancer is the primary antagonist, a powerful and ruthless practitioner of dark magic who controls the ghoul responsible for the murders. This individual is cunning, intelligent, and deeply entrenched in Seattle's society, using their mundane position to facilitate their sinister rituals. Their motivations are rooted in a desire for power and control, possibly seeking to extend their life or gain greater magical prowess through the sacrifice of others. They are a formidable opponent, capable of wielding potent spells and anticipating Harper's moves, making them a significant threat.

Relationships: The Ghoul (master and servant); Harper Blaine (adversary); Quinton (target for ritual)

The Ghoul

Antagonist

An ancient, monstrous creature controlled by the necromancer.

The Ghoul is a monstrous, ancient creature of legend, serving as the Necromancer's primary instrument of terror and death. It is a bestial entity that feeds on the dead and delights in mutilation, responsible for the gruesome murders of the homeless. While powerful and terrifying, it is ultimately a servant, lacking the necromancer's intelligence and strategic cunning. Its presence in the story emphasizes the ancient and primal nature of the threats Harper faces, representing a physical manifestation of dark magic and hunger.

Relationships: The Necromancer (master and servant); Harper Blaine (adversary)

Ben

Supporting

An occult bookstore owner and Harper's source of supernatural knowledge.

Ben is a knowledgeable and somewhat eccentric owner of an occult bookstore. He serves as Harper's primary source of information regarding the paranormal, providing her with crucial lore, historical context, and insights into the creatures and magical practices she encounters. Ben is cautious and understands the dangers of the supernatural world, but he trusts Harper and is willing to help her, even if it puts him at some risk. He represents a bridge between Harper's mundane life and her growing understanding of the Grey.

Relationships: Harper Blaine (friend and informant)

Jude

Supporting

Harper's friend and confidante.

Jude is one of Harper's closest friends, a mundane individual who remains largely unaware of Harper's Greywalker abilities and the supernatural world. She provides a grounding presence for Harper, offering emotional support, a sense of normalcy, and a connection to her life before the Grey. While not directly involved in the paranormal investigations, Jude's friendship is vital for Harper's mental well-being, reminding her of the human world she is fighting to protect. Her presence highlights the isolation Harper often feels as a Greywalker.

Relationships: Harper Blaine (close friend)

Underground Themes

The Veil Between Worlds

The novel explores the thin line separating the mundane world from the supernatural realm, specifically through Harper's experience as a Greywalker. This theme is evident in her unique ability to perceive and interact with the Grey, revealing hidden layers of reality and the constant, often terrifying, presence of the paranormal beneath everyday life. It highlights how easily the known world can be breached by forces beyond human comprehension, and the struggle to exist in both realities simultaneously.

“The Grey was always there, a shimmer at the edge of my vision, a hum in my ears, but now it was a constant, undeniable presence, a second reality laid over the first.”
Narrator (Harper Blaine)

Identity and Acceptance

Harper's journey is tied to her struggle with and eventual acceptance of her new identity as a Greywalker. Initially, she resists her abilities, viewing them as a curse. However, as the plot unfolds, she begins to understand that her unique nature is not only a part of her but also a necessary tool for protecting others. This theme explores coming to terms with personal change and finding strength in what makes one different, ultimately embracing a new purpose.

“I was no longer just Harper Blaine, PI. I was something else, something more, and whether I liked it or not, the Grey was now a part of me.”
Narrator (Harper Blaine)

The Hidden Underbelly of Society

The novel uses Seattle's literal and metaphorical 'underground' to represent the hidden and often ignored aspects of society, particularly the homeless. The brutal murders of the homeless population highlight their vulnerability and the systemic neglect they face. The physical underground itself, a place of historical secrets and modern desperation, becomes a breeding ground for supernatural horror, symbolizing how the unseen and unacknowledged can fester and become dangerous.

“Beneath the polished streets of modern Seattle lay another city, forgotten and crumbling, a place where the living struggled and the dead walked.”
Narrator

Good vs. Evil and Moral Ambiguity

The story presents a clear conflict between good and evil, personified by Harper's fight against the necromancer and the ghoul. It also touches on moral ambiguity, particularly concerning Quinton's past and the choices individuals make when faced with desperate circumstances. Harper herself operates in a morally gray area, using her unique abilities to bend rules and sometimes cross lines in her pursuit of justice. The theme explores the costs of fighting evil and the difficult decisions that arise when dealing with forces that defy conventional morality.

“There were no clean lines in the Grey, no clear answers, just shades of intent and the consequences of wielding power.”
Narrator (Harper Blaine)

Plot Devices & Literary Techniques

Greywalker Ability

Harper's unique perception of the paranormal realm.

The Greywalker ability is the central plot device, granting Harper the power to perceive and interact with the Grey – the liminal space between life and death. This allows her to see ghosts, residual energy, magical traces, and other supernatural phenomena that are invisible to ordinary humans. It serves as both a source of information (seeing clues in the Grey) and a means of defense/offense (manipulating Grey energy or spirits). The ability is still developing, creating tension as Harper learns its limits and applications, directly driving her involvement in supernatural cases.

The Seattle Underground

A literal and metaphorical setting for hidden horrors.

The Seattle Underground serves as a crucial setting and plot device. It is the physical location of the murders and the necromancer's lair, providing an atmospheric, labyrinthine backdrop for the supernatural events. Metaphorically, it represents the hidden, forgotten, and dark aspects of society and history, mirroring the unseen nature of the Grey. Its historical context and isolation make it an ideal place for dark magic to thrive, and its physical structure creates challenges for Harper's investigation and confrontations.

The Ghoul's Ritualistic Murders

The method of killing as a catalyst for the plot.

The ghoul's ritualistic murders are the inciting incident and a key plot device. The gruesome nature of the killings – dismembered bodies drained of blood – immediately signals a supernatural element, drawing Harper into the case. The specific method of killing provides clues about the nature of the killer (a ghoul) and the ultimate purpose of the necromancer (a dark ritual). The escalating body count and the specific targeting of the homeless create urgency and highlight the vulnerability of the victims, driving Harper's determination to stop the threat.

Quiz

10 questions on the plot and the characters. Each answer comes with a short explanation.

  1. Question 1

    What is the protagonist's name in the novel 'Underground'?

    1. Quinton
    2. Harper Blaine
    3. Kat Richardson
    4. The Monster
    Show answer

    B. Harper Blaine The main character, a private investigator, is named Harper Blaine.

  2. Question 2

    What unusual ability does Harper Blaine gain after her near-death experience?

    1. Super strength
    2. Invisibility
    3. She becomes a Greywalker, able to walk between the living and paranormal realms
    4. Telekinesis
    Show answer

    C. She becomes a Greywalker, able to walk between the living and paranormal realms After dying for two minutes, Harper becomes a Greywalker, granting her the ability to perceive and interact with the paranormal realm.

  3. Question 3

    Where is the story 'Underground' primarily set?

    1. New York City
    2. Los Angeles
    3. Seattle
    4. Chicago
    Show answer

    C. Seattle The novel is set in Seattle, with specific mention of Pioneer Square and the underground city beneath modern Seattle.

  4. Question 4

    What unusual phenomenon is occurring with the homeless population in Pioneer Square?

    1. They are disappearing without a trace.
    2. They are turning up dead and mutilated.
    3. They are developing supernatural powers.
    4. They are being abducted by aliens.
    Show answer

    B. They are turning up dead and mutilated. The victims in the initial cases are members of the homeless population in Pioneer Square, who are found dead and mutilated.

  5. Question 5

    Who persuades Harper to investigate the strange deaths?

    1. Her friend Quinton
    2. The police detective
    3. A ghost
    4. Her client
    Show answer

    A. Her friend Quinton Harper's friend, Quinton, believes he might be implicated in the deaths and convinces her to take the case.

  6. Question 6

    What legendary creatures have been seen roaming the underground of Seattle?

    1. Vampires
    2. Werewolves
    3. Zombies
    4. Gorgons
    Show answer

    C. Zombies The text explicitly mentions that zombies have been seen roaming the underground city.

  7. Question 7

    What is the nature of the killer Harper is investigating?

    1. A serial killer with a human motive
    2. A supernatural creature of ancient legend
    3. A disgruntled former client of Harper's
    4. A rival private investigator
    Show answer

    B. A supernatural creature of ancient legend The killer is described not as a mere murderer but as a creature from ancient legend, suggesting a supernatural origin.

  8. Question 8

    What is the 'city buried beneath modern Seattle' referred to as in the novel?

    1. The Undercity
    2. The Subterranean
    3. The Underground
    4. The Lower Levels
    Show answer

    C. The Underground The novel specifically refers to the buried city beneath modern Seattle as 'the underground'.

  9. Question 9

    What does Harper need to deal with to stop the monster and its master?

    1. Only the living
    2. Only the dead
    3. Both the living and the dead
    4. Only the paranormal realm
    Show answer

    C. Both the living and the dead Harper's role as a Greywalker means she must navigate and confront threats from both the living and the dead to achieve her goals.

  10. Question 10

    What is the genre of 'Underground' by Kat Richardson?

    1. Science Fiction
    2. Mystery
    3. Thriller
    4. Historical Fiction with paranormal elements
    Show answer

    D. Historical Fiction with paranormal elements While the description includes paranormal elements and mystery, the genre is specified as Historical Fiction.

Underground FAQ

What is the book 'Underground' by Kat Richardson about?

'Underground' is a historical fiction novel featuring private investigator Harper Blaine. After a near-death experience, Harper becomes a Greywalker, able to see and interact with the paranormal realm. She takes on a case involving mysterious deaths among Seattle's homeless population, which leads her to uncover a creature from ancient legend operating in the city's buried underground.

Who is the main character in 'Underground'?

The main character is Harper Blaine, a private investigator who, after dying for two minutes, gains the ability to walk between the living world and the paranormal realm. She is now a 'Greywalker' and uses her new abilities to solve unusual cases.

What kind of abilities does Harper Blaine gain?

Harper becomes a Greywalker, which means she can perceive and interact with the paranormal realm while still being alive. This ability allows her to see ghosts and other supernatural entities, and it leads her to take on cases that involve the supernatural.

What is the setting of 'Underground'?

The novel is set in Seattle, specifically focusing on the Pioneer Square area and the city's buried underground, a layer of the city that was built over after a historical event. This unique setting plays a significant role in the mystery.

What is the central mystery or conflict in the book?

The central mystery revolves around the brutal deaths of homeless individuals in Seattle, with reports of zombies roaming the underground. Harper investigates when her friend becomes a suspect, uncovering that the killer is a creature of ancient legend with a master behind it.

Are there zombies and ancient legends in 'Underground'?

Yes, the book features zombies seen roaming the city's underground and the main antagonist is revealed to be a creature of ancient legend. Harper must confront both the living and the dead to stop the monster and its master.

Is 'Underground' part of a series?

Yes, 'Underground' is the first book in the Greywalker series by Kat Richardson, introducing Harper Blaine and her unique abilities.

What genre is 'Underground' by Kat Richardson?

While categorized as historical fiction due to its setting and the exploration of Seattle's buried past, 'Underground' also strongly incorporates elements of paranormal mystery and urban fantasy.

What is the significance of the 'buried city' in Seattle?

The 'buried city' refers to the original street level of Seattle, which was built over after the Great Seattle Fire of 1889. This subterranean layer serves as a hidden world where supernatural events and creatures can operate unseen by the general public.

What kind of challenges does Harper face in 'Underground'?

Harper faces the dual challenge of investigating a series of gruesome murders while navigating her new paranormal abilities and the dangers associated with the spirit world. She must contend with a powerful supernatural entity and its human accomplice.

About the author

Kat Richardson

Kat Richardson

Kat Richardson is an author known for her contributions to the urban fantasy genre. Her notable works include "Poltergeist," "Revenant," and "Underground," which feature elements of the supernatural and explore themes of the paranormal. Richardson's writing often blends mystery with fantastical elements, appealing to fans of both genres.

All 3 summaries of Kat Richardson's books →

Similar books

  • The Alienist

    Caleb Carr

    4.1 (182k) average on GoodreadsFiction

    "Underground" shares with Caleb Carr's "The Alienist" a dedication to historical accuracy and a dark, atmospheric setting for a murder mystery. Both novels meticulously reconstruct their respective eras (post-WWI London versus Gilded Age New York) and use the period's nascent psychological understanding to inform their detective work. However, "Underground" often feels more grounded in the everyday struggles and societal shifts of its time, whereas "The Alienist" leans more heavily into the gothic and psychological horror elements, featuring a more overtly 'brilliant but troubled' protagonist. Richardson's narrative is perhaps less overtly sensational than Carr's, opting for a more nuanced exploration of trauma and societal rebuilding.

  • A Great Deliverance

    Elizabeth George

    4.0 (40k) average on GoodreadsThriller

    While Elizabeth George's Inspector Lynley series, beginning with "A Great Deliverance," is set in a more contemporary period, there's a thematic resonance with "Underground" in their approach to character-driven mysteries deeply embedded within specific social strata. Both authors excel at crafting complex characters whose personal histories and relationships significantly impact the investigation. "Underground" distinguishes itself by its direct engagement with a specific historical event (WWI's aftermath) as a central force shaping its characters and plot, rather than merely a backdrop. George's novels often explore class and privilege in modern Britain, while Richardson focuses on the collective trauma and reconstruction of a society grappling with immense loss, using the mystery to illuminate broader historical truths.

  • To Kill a Mockingbird

    Harper Lee

    4.3 (4.5M) average on GoodreadsHistorical Fiction

    In the 1930s Jim Crow South, Harper Lee writes about racial injustice, moral growth, and the quiet courage of a lawyer father, Atticus Finch, as seen through his young daughter's eyes.

  • The Great Gatsby

    F. Scott Fitzgerald

    3.9 (3.8M) average on GoodreadsHistorical Fiction

    In the opulent Roaring Twenties, a mysterious millionaire's lavish parties hide his desperate, tragic pursuit of a lost love, exposing the emptiness within the American Dream.

  • Pride and Prejudice

    Jane Austen

    4.3 (3M) average on GoodreadsHistorical Fiction

    In a society focused on status and money, Elizabeth Bennet navigates love and pride, challenging Mr. Darcy and social expectations to find true affection.

  • Angels & Demons

    Dan Brown

    3.9 (2.7M) average on GoodreadsThriller

    A Harvard symbologist races through Rome's ancient sites, deciphering cryptic clues to unmask the Illuminati and stop a vengeful plot to destroy the Vatican with a stolen antimatter weapon.

More Historical Fiction summaries →

Enjoyed the summary?

A summary gives you the shape of the book. The book itself has the detail, the examples and the voice.

Find Underground on Amazon

As an Amazon Associate, BookBrief earns from qualifying purchases. How we're funded