Home for the Howlidays

Sam and Leesha must figure out how to break the spell before they are turned into monsters, too--and Christmas joy becomes a Christmas nightmare . . .
Sam Hollister and his stepsister, Leesha, head home from boarding school for the holidays. But when they arrive, Cameron the butler looks an awful lot like Frankenstein. Why does Mom insist on being called "Mummy?" And why does she look like one, too? Why does Dad sleep during the day? And why does little brother grow fuzzier during a full moon?