(From the publisher):
Jon didn't care about finding the fabulous treasure that Mr. Plumm was obsessed with...or about being the first to set eyes on the highest waterfall in the world, the legendary Falls of Orellana. His only wish was to learn what had happened to his father, who had vanished years ago while searching for the Falls.
But neither Jon nor Plumm was prepared for the astonishing discovery they made deep in the mysterious jungles of the Amazon!
Original title: Secret of the Lost Empire
Genre: Fiction→ Children & Young Adult→ Adventure