Andy assaults Dempsey for his relationship with Laura, but she defends him. Isabel gives him a get well card, with a drawing of what she calls a “water kelpie” on it. Realising she, too, has seen the monster, Dempsey convinces Isabel to show him where it lives, and he will buy her a red bicycle she has always wanted. Isabel leads him to a cavern beneath Urquhart Castle, where they encounter a family of a plesiosaur and elasmosaur hybrids. Isabel can communicate with them through a series of whistles. In astonished euphoria, Dempsey takes photographs of the monsters, frightening them, and knocking Isabel into the water. He saves her, but is confronted by the Water Bailiff.