Tim and Grk adventures

Tim and his dog Grk face kidnapping, a plane crash in the jungles of Brazil, and more as they pursue a gang of escaped bank robbers--the infamous Pelotti brothers--who were originally captured by the Raffifi children's father.

While vacationing in the Seychelles, Tim discovers a well-guarded private island where he learns of a devious plot that threatens the endangered local giant tortoise.