Cyrus Wheatley is a farmer.
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He helped the Duke of Strathmore scare away visitors to Hagglethorn Hall by putting on a wetsuit and dressing up as the Moat Monster in exchange for half the money from the sale of the castle. He warned Mystery Inc. about the Haunted Horseman and to stay away from Hagglethorn Hall, but they decided to go anyway since they had already driven so far and couldn't think of turning back now. After he and the duke were caught, Creech, the castle butler, asked if he should call the authorities, but the duke pointed out that doing this would bring great shame to the family name. So, instead, they had to use their disguises to attract visitors and help raise money for Hagglethorn Hall. Wheatley had to dress up as the Moat Monster and was getting water-logged in the moat.