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 takes Jack and his sister Annie to the Great Plains where they learn about the life of the Lakota Indians.

Books 9-16 of the New York Times bestselling Magic Tree House series! In books 9-12, Morgan le Fay, the magical librarian of Camelot, challenges Jack and Annie to find the answers to four riddles. To do so, they must travel under the sea and to the Wild West, the African plains, and the frozen Arctic. It's a difficult and dangerous task, but if Jack and Annie succeed, they will become Master Librarians! In books 13-16, Jack and Annie must save stories...

It's a treasure trove of trouble! Jack and Annie are in for a high-seas adventure when the magic tree house whisks them back to the days of deserted islands, secret maps--and ruthless pirates! Will they discover a buried treasure? Or will they be forced to walk the plank? The magic treehouse whisks Jack and Annie back to the days of deserted islands, secret maps, hidden gold, and nasty pirates.

It is a dark and snowy night when the magic tree house whisks Jack and Annie back to the Revolutionary War. General George Washington is about to lead his army in a sneak attack against their enemy. But now the terrible weather is making the great general question his plans. Can Jack and Annie keep history on track? The fate of the country rests in their hands!

Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle. Morgan le Fay will make Jack and Annie masters of the tree house if only they can solve four riddles -- which will take four books, of course! Dolphins at Daybreak begins the third set of four books in this magical (and increasingly popular) series! Jack and Annie are off in the Magic...

No girls allowed at the Olympic Games! That's the rule when the magic tree house whisks Jack and Annie back to ancient Greece. But when Annie tells Jack to go to the games without her, he knows she's up to something. Will Annie find a way to see the games? Or will she herself--and Jack--into Olympic-size trouble?

"Retells, in graphic novel form, the tale of eight-year-old Jack and his younger sister Annie, who are whisked back in the magic treehouse to the time of knights and castles"--

Is this town haunted? That's what Jack and Annie wonder when the magic tree house whisks them to the Wild West. Soon they run into horse thieves, rattlesnakes, a cowboy named Slim ... and maybe even a ghost! Can they solve the riddle that lets them get along home?

"When the magic tree house returns it whisks Jack and Annie away to the Galapagos Islands where they become World Turtle Experts and must save a tortoise in danger of an erupting volcano"--