Jack and Annie travel in their Magic Tree House back to a Hawaiian island of long ago where they make friends, learn how to surf, and encounter a tsunami.

Their magic tree house takes Jack and Annie to the Arctic, where a polar bear leads them onto very thin ice.

The magic tree house whisks Jack and Annie to the vast plains of Africa to solve a new riddle. Soon they have an adventure with wildebeests, hyenas, zebras, and elephants. Will Jack and Annie come back safely? Or will lions get in their way?

Their magic tree house takes Jack and Annie back to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Viking raiders.

When the magic tree house whisks Jack and Annie back to the 1870's, the land on a prairie near a one-room schoolhouse. They meet a teenage schoolteacher, some cool kids, and one big, scary bully. But just when they think their mission is over, a twister sweeps across the prairie! Can Jack and Annie help their new friends? Or will the twister blow them all away?

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.

Jack and Annie are all shaken up! The magic tree house whisks them back to California in 1906. As soon as they arrive, the famous San Francisco earthquake hits the city. Can Jack and Annie find the final writing they need to help Morgan save Camelot? Or will San Francisco be destroyed first?

The magic tree house whisks Jack and Annie back to a field hospital during the American Civil War. There they meet a famous nurse named Clara Barton and do their best to help wounded soldiers. It is their hardest journey yet--and the one that will make the most difference to their own lives!

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.

Having used their magic tree house to travel to India, where they must get a gift to help free the dog Teddy from a spell, Jack and Annie have adventures involving a tiger and other endangered jungle animals.