Mary Pope Osborne is an American author known for her children's fiction, particularly the Magic Tree House series. Her notable works include "The Knight at Dawn," "Dolphins at Daybreak," "Afternoon on the Amazon," "Tonight on the Titanic," "Ghost Town at Sundown," and "Hour of the Olympics," which combine adventure with historical and educational themes.
AI-generated overview, grounded in this author's works. It may be incomplete — corrections welcome.
Two siblings are whisked by a magic tree house into a medieval castle, where they must navigate a feast of peacocks and boys in skirts as unexpected, and unwelcome, guests.
Stranded in a mini-submarine on a coral reef, siblings Jack and Annie must outwit a giant octopus and a hungry shark, hoping intelligent dolphins will save them from becoming deep-sea dinner.
The Magic Tree House sends Jack and Annie to a Wild West ghost town, where they must outsmart horse thieves, avoid rattlesnakes, and solve a spectral mystery to help a cowboy before sundown.
Jack, Annie, and their enchanted dog Teddy are whisked to the 1800s Great Plains where a buffalo hunt with a Lakota boy turns into a thrilling race against a thousand stampeding buffalo.
Join Jack and Annie as the Magic Tree House whisks them away to 1906 San Francisco, where they must use their wits to survive a devastating earthquake and help a librarian save precious books, all while navigating a city on the brink of collapse.
Jack and Annie ride the ultimate wave back in time to ancient Hawaii, where surfing lessons turn into a race against a looming tidal wave to save their new island friends.
Jack, Annie, and Teddy journey through a world of selkies, spider queens, and a magical sword to confront a sea serpent and complete Merlin's mythical quest.
On a quest to save Merlin, Jack and Annie get stuck on a deserted island before joining a scientific expedition hunting for a sea monster in the deep ocean.
Jack and Annie don ridiculous 18th-century attire to navigate a bustling Austrian palace, outsmart a mischievous young boy, and use a bit of magic to help a legendary musician named Mozart.
In a haunted New Orleans, Jack and Annie discover the soulful birth of jazz with a young Louis Armstrong, all while trying to inspire artists and escape the city's spectral residents.
In a blustery historical Ireland, Jack and Annie’s magical encounter with a young Irish girl and a mischievous leprechaun helps turn her into Lady Gregory, a champion of Irish legends and cultural pride.
