Dinosaurs before dark —Osborne, Mary Pope, author.

Eight-year-old Jack and his younger sister Annie find a magic treehouse, which whisks them back to an ancient time zone where they see live dinosaurs.

Pirates past noon —Osborne, Mary Pope, author.

The magic treehouse whisks Jack and Annie back to the days of deserted islands, secret maps, hidden gold, and nasty pirates.

Mummies in the morning —Osborne, Mary Pope, author.

Jack and his younger sister take a trip in their tree house back to ancient Egypt, where they help a queen's mummy continue her voyage to the Next Life.

The knight at dawn —Osborne, Mary Pope, author.

Eight-year-old Jack and his younger sister Annie use the magic treehouse to travel back to the Middle Ages, where they explore a castle and are helped by a mysterious knight.

Hurricane heroes in Texas —Osborne, Mary Pope, author.

"Jack and Annie travel in the magic tree house to Galveston, Texas on September 8, 1900--the day of the worst natural disaster in US history"-- Provided by publisher.

Narwhal on a sunny night —Osborne, Mary Pope, author.

"The magic tree house whisks Jack and Annie away to Greenland where they discover they've traveled back in time to meet Lief Erikson"-- Provided by publisher.

Late lunch with llamas —Osborne, Mary Pope, author.

"The magic tree house whisks Jack and Annie away to South America, where they must climb Machu Picchu to save a baby llama"-- Provided by publisher.

Vacation under the volcano —Osborne, Mary Pope, author.

Their magic tree house takes Annie and Jack to Pompeii just as Vesuvius is about to erupt, and they must find a Roman scroll before everything is covered with burning ash.

Balto of the Blue Dawn —Osborne, Mary Pope, author.

"Jack and Annie travel back in time to 1925 Nome, Alaska, where they meet Balto, the famous sled dog, and help save the town from illness"-- Provided by publisher.

To the future, Ben Franklin! —Osborne, Mary Pope, author.

"Jack and Annie are whisked back in time by the magic tree house to meet Benjamin Franklin in Old Philadelphia"-- Provided by publisher.

A big day for baseball —Osborne, Mary Pope, author.

"Jack and Annie use the magic tree house to travel back in time to 1947 Brooklyn, New York, where they pretend to be batboys at Jackie Robinson's first game with the Brooklyn Dodgers against the Boston Braves"-- Provided...

Moonlight on the magic flute —Osborne, Mary Pope, author.

Jack and Annie travel to Vienna, Austria, in 1762 where they meet the young Wolfgang Amadeus Mozart and his sister and help save the budding genius' life.

Monday with a mad genius —Osborne, Mary Pope, author.

Jack and Annie travel 500 years back in time to Florence, Italy, and spend a day helping Leonardo da Vinci in the hope of learning another secret of happiness.

Haunted castle on Hallows Eve —Osborne, Mary Pope, author.

Stallion by starlight —Osborne, Mary Pope, author.

Jack and Annie are magically transported to Ancient Greece to find the meaning of greatness. There they meet the young Alexander the Great and take part in the famous story of how he tamed his horse, Bucephalus.

Night of the new magicians —Osborne, Mary Pope, author.

Jack and Annie visit the Paris World's Fair of 1889 in an effort to protect four scientific pioneers from an evil sorcerer.

Dark day in the deep sea —Osborne, Mary Pope, author.

When eight-year-old Jack and his seven-year-old sister, Annie, join a group of nineteenth-century explorers aboard the H.M.S. Challenger, they learn about the ocean, solve the mystery of its fabled sea monster, and gain ...

Warriors in winter —Osborne, Mary Pope, author.

Night of the ninth dragon —Osborne, Mary Pope, author.

Introduces readers to classic Welsh legends as Jack and Annie return to Camelot to assist King Arthur, Merlin, and the Knights of the Round Table.

Ninjas and samurai : a nonfiction companion to Magic tree house #5, Night of the ninjas —Osborne, Mary Pope, author.

A fact-filled companion to Jack and Annie's fifth adventure discusses what it was like to be a ninja or samurai in ancient Japan and whether or not such talented martial-arts masters actually possessed special abilities....