How to keep a sea monster from eating your town

Brady is distraught when he finds out that Maxwell wants to sell the house and move away from Ravenville. Brady is mostly devastated that he will never find his long lost favourite monster if he moves away. He promises a cash reward to whoever finds his beloved missing monster. Maxwell is stressed out by the sale of his property; he gets Brady to promise that the potential buyers will not be bothered by his beastly business. But much to Maxwell's horror, his open house is ruined since the monsters and their owners show up at the house in hopes of collecting the reward.