Anna Dressed in Blood by Kendare Blake 

Cas Lowood has inherited an unusual vocation: He kills the dead. So did his father before him, until he was gruesomely murdered by a ghost he sought to kill. Now, armed with his father’s mysterious and deadly athame, Cas travels the country with his kitchen-witch mother and their spirit-sniffing cat. They follow legends and local lore, destroy the murderous dead, and keep pesky things like the future and friends at bay.

Searching for a ghost the locals call Anna Dressed in Blood, Cas expects the usual: track, hunt, kill. What he finds instead is a girl entangled in curses and rage, a ghost like he’s never faced before… Read more.