In this exciting adventure, Jack and Annie are taken to a monastery in medieval Ireland to find a lost book. While they are there, Viking raiders come ashore, hoping to make slaves of the monks.
The Magic Tree House whisks Jack and Annie to the decks of that ill-fated ship, the "Titanic". There they help a toddler find her way to a lifeboat before they, themselves, are in grave danger of becoming two more victims of the tragic event.
The Magic Tree House whisks Jack and Annie off to the mountains of Africa. There, they run into a huge mountain gorilla! At first they don't know whether they should shake hands or turn tail. But the ominous-looking creature turns out to be surprisingly gentle. Not only that, the gorilla may be able to help them learn their next bit of magic, which Morgan has challenged them to do.
Climb the ladder to adventure by reading Magic Tree House books! Don't forget your kusarigama! Did you ever take tea with a real live Ninja? Jack and Annie do when the Magic Tree House drags them backwards to ancient Japan where they find themselves in the cave of a Ninja master. Will they learn the secrets of the noble and mysterious Ninja?
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.
