Scarenthood (Scarenthood #3)

It's Christmas time, there's no need to be afraid... Unless you've disturbed an ancient entity, your sanity is in tatters, your child is at risk, and your friends don't believe a word you say. Cormac is forced to dig up the past as The Big Boy makes itself more and more at home, and Scooper gets what every kid wants from Santa: An exorcism.