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.

Eight-year-old Jack, his seven-year-old sister, Annie, and Peanut the mouse ride in a tree house to the Amazon rain forests, where they encounter giant ants, flesh-eating piranhas, hungry crocodiles, and wild jaguars.

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.

Stage fright on a summer night: The show must go on! That's what Jack and Annie learn when the Magic Tree House whisks them back to Elizabethan England. There they meet William Shakespeare who's having a hard time with some of the actors in his latest show. Are Jack and Annie ready to make a big entrance? Or will it be curtains for Shakespeare? Good morning, gorillas: Gentle giants or giant monsters? That's the question Jack and Annie have...

Four time-traveling adventures find Jack and Annie whisked back to the time of the dinosaurs, medieval England, ancient Egypt, and pirate treasure hunts.

"When Jack and Annie receive an invitation to spend Christmas Eve in Camelot--a magical place that exists only in myth and fantasy--they know they are in for their biggest adventure yet. What they don't know is that the invitation will send them on a quest to save Camelot. Can they succeed even though Camelot's greatest knights have failed?"--Amazon.com.

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.