For readers of Jane Harper and Rachel Caine comes a chilling thriller from award-winning author Jen Williams about a woman who discovers her late mother had been secretly corresponding with a serial killer for decades.

When prodigal daughter Heather Evans returns to her family home after her mother's baffling suicide, she makes an alarming discovery--stacks and stacks of carefully preserved letters from notorious serial killer Michael Reave. The "Red Wolf," as he was dubbed by the press, has been in prison for over twenty years, serving a life sentence for the gruesome and ritualistic murders of several women across the country, although he has always protested his innocence. The police have had no reason to listen, yet Heather isn't the only one to have cause to re-examine the murders. The body of a young woman has just been found, dismembered and placed inside a tree, the corpse planted with flowers. Just as the Red Wolf once did.

What did Heather's mother know? Why did she kill herself? And with the monstrous Red Wolf safely locked inside a maximum security prison, who is stalking young women now? Teaming up with DI Ben Parker, Heather hopes to get some answers for herself and for the newest victims of this depraved murderer. Yet to do that, she must speak to Michael Reave herself, and expose herself to truths she may not be ready to face. Something dark is walking in the woods, and it knows her all too well.