Anna Dressed In Blood Anna Series, Book 1.

From Kendare Blake, the #1 New York Times bestselling author of Three Dark Crowns , a beautiful and haunting ghost story 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. Together they follow l...