John Connolly 
Monks of Appalling Dreadfulness 

The Monks of Appalling Dreadfulness are the most feared assassins in the Multiverse. They are ruthless. They are cunning. They can do interesting things with oranges.Now they have been hired to hunt down and kill the demon Nurd, along with every friend he’s ever had.But friends come in all shapes and sizes, and with all kinds of talents.The Monks of Appalling Dreadfulness are about to meet their match . . .