Frank Perriti is an Christain author, and loves writing about adventure (At least all the books of his I read were adventure) anyway in this certian book, Doctor Cooper and his teenage kids go to "the door in the dragons throat." When they get there they find they have to open this mysterious door and find out what's inside. One greedy native hopes for treeasure, that he can keep all for himself. When the Coopers find out what's in the room behind the door, they warn the native not to open it. If you want to find out why, Go to your nearest library.The whole seris is pretty fun. Please enjoy the book.