The fan-favorite chapter-book series sends Jack and Annie backto India over 400 years ago to search for a rare and preciousemerald. Once there, they discover an amazing and exotic worldfilled with great danger. Will they find what they're looking for?Will they avoid the wrath of the all-powerful Great Mogul, survivea crazy ride on a wild elephant, escape an attack by kingcobras—and make it back to the magic tree house alive?
　　Mary Pope Osborne brings together just the right combination ofhistory, magic, and fast-paced adventure to satisfy kids, parents,teachers, and librarians all over the world with her New York Timesbestselling series.