Sardius Sardonyx is a cop on the edge. He is an on-the-verge-of-being-reformed alcoholic, a stoner, a man who wakes up every morning dreading the day. The ghost of every person who has ever been shot by his police gun comes back to haunt him - including an old girlfriend. Sometimes, they tell him secrets. Sometimes, they help him solve his cases. But mostly, they’re about raising hell.
The Raising Hell Series (books 1-14) also has bonus consecutive chapters of Blood Pact by Valda Dedieu.