table of contents prologue chapter 1 mushrooms chapter 2 the boys chapter 3 volunteers chapter 4 the trip chapter 5 old friend chapter 6 library chapter 7 arrived chapter 8 friday chapter 9 celebration chapter 10 the hunt chapter 11 dark chapter 12 imaginary line chapter 13 rescue chapter 14 enter chapter 15 waiting chapter 16 the hill chapter 17 the lake chapter 18 hospital epilogue prologue the animal in the densely wooded area is large , fierce , and dangerous .