Half-Resurrection Blues by Daniel Jose Older

"Because I'm an inbetweener--and the only one anyone knows of at that--the dead turn to me when something is askew between them and the living. Usually, it's something mundane like a suicide gone wrong or someone revived that shouldn'ta been."

Carlos Delacruz is one of the New York Council of the Dead's most unusual agents--an inbetweener, partially resurrected from a death he barely recalls suffering, after a life that's missing from his memory. He thinks he is one of a kind--until he encounters other entities walking the fine line between life and death.

One inbetweener is a sorcerer. He's summoned a horde of implike ngks capable of eliminating spirits, and they're spreading through the city like a plague. They've already taken out some of NYCOD's finest, leaving Carlos desperate to stop their master before he opens up the entrada to the Underworld--which would destroy the balance between the living and the dead.

But in uncovering this man's identity, Carlos confronts the truth of his own life--and death...

This book is part of the "Bone Street Rumba" series.
Here are some other books from this series: