Marty and his best friend, Luther, have managed to rescue Marty's cousin Grace from the clutches of the nefarious pseudo-naturalist Noah Blackwood, but their most dangerous mission lies ahead of them. Marty's parents have been missing in Brazil for months, and their trail has all but run cold. With time running out, Marty and the Cryptos Island crew race off for Brazil where they discover that Noah Blackwood has twisted the natural order of things...

In the threatened jungle of the Borderlands between Nepal and India during the 1970s, an orphaned boy discovers his fate as a great elephant driver.

I have never been a brave mouse, but lately, my fears were taking over my life! So Thea and Trap decided to cure me by dragging me all the way to the jungle, where I was forced to eat bug soup, swim in raging rivers, and even wrangle snakes! How would a 'fraidy mouse like me ever survive?

Thirteen-year-old Nanda Singh, the youngest elephant driver in Nepal, enjoys a very special relationship with his tusker, Hira Prashad, through which he grows in understanding and compassion with all animals, including humans.