The tiny fishing community of Deeper Harbour is in deep trouble--and so is fourteen-year-old Roland MacTavish. Roland's mom wants to move with him to Ottawa, away from his father, his weird friend Dulsie and his even weirder grandfather, Angus. So Roland does what any sane teenager would do: He invents a sea monster. Unfortunately, the scheme quickly spins out of Roland's control, and he has to go to greater and greater lengths to keep up the illusion. And then Roland must deal with a situation far more terrifying than any sea monster.