Percy Fitzroy's family is known for being eccentric, but he never expected one of them to predict the end of the world over dinner. According to Grandma Iris, the apocalypse is due at the end of the month along with the credit card bills. What's more unexpected? Half the family believes her, and the other half goes on a crusade to prove her wrong. With the parents of Percy's new sister-in-law coming to visit for Christmas, he now has twenty-five days to get his family's antics under control. The ensuing events, laced with household drama, will surely give Percy a Christmas he'll never forget-if he can survive it.