 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.