The #1 bestselling chapter book series is now available as graphic novels Magic. Mystery. Time-travel. Get whisked away to the Amazon rainforest on a high-stakes adventure with brother-and-sister team Jack and Annie Watch out for that crocodile Get ready for a wild ride as Jack and Annie find themselves in the Amazon Rainforest on a dangerous journey. From killer ants to vampire bats, they never know what they'll run into next...