The author of The Murders of Molly Southbourne and The Wormwood Trilogy makes his Subterranean debut with a novella, The King Street Golem, that sits proudly on the shelf with those modern classics.

In New Orleans, a city already shaken by the killing of Black people at the hands of police, someone is taking revenge.

When police officers involved in fatal shootings of Black youths begin to die in brutal and inexplicable ways, investigators find a disturbing connection: an urban shrine bearing the names of the officers responsible.

FBI agent John-John Elder is given command of the task force. Already struggling to recover from a failed investigation, he knows his appointment is as much about appearances as ability. As the case takes increasingly disturbing turns, Elder must prove himself while confronting an uncomfortable question: what if everyone is wrong about who—or what—is responsible?

Activist Sadie Queen stands on the other side of the investigation, caught between a police force she despises and the community she is determined to protect. But she carries secrets of her own, and a terrible legacy is closing in.

As the task force and the community draw closer to the truth, they uncover something ancient, violent and seemingly beyond the reach of law.

For John-John and for the task force, finding the killer is one thing, stopping it is another.