Thicker Than Water (Felix Castor, book 4)
by Mike Carey
From the publisher:
Old ghosts are coming back to haunt Felix.
Names and faces he thought he’d left behind in Liverpool resurface in London, bringing Felix far more trouble than he’d anticipated. Childhood memories, family traumas, sins old and new, and a council estate that was meant to be a modern utopia until it turned into something like hell….These are just some of the sticks life uses to beat Felix Castor with, as things go from bad to worse for London’s favorite freelance exorcist.
See, Castor’s stepped over the line this time, and he knows he’ll have to pay. The only question is: how much? Not the best of times, then, for an unwelcome confrontation with his holier-than-thou brother, Matthew. And just when he thinks things can’t possibly get any worse, along comes Father Gwilliam and the Anathema.