Nancy investigates potential poachers at Crocodile Island, a dark, swampy setting with enough reptilian foes to make the locale worthy of its name. Soon Nancy, Bess and George to realize the reptilian foes are less dangerous than some human beings inhabiting the island. The resourceful detectives work diligently to uncover a sinister racket involving many unsuspecting victims. This book is the original text. A revised text does not exist.