J.T. Harrow

It isn't haunting the asylum. The asylum is holding it back. Blackthorn Asylum was never meant to heal. For decades, it stood as a place for the broken and the forgotten-until it was abandoned after a series of unexplained disappearances and a fire that should have destroyed it. Now, it has reopened as a haunted attraction. But something inside Blackthorn has begun to stir. When Mara Vane arrives to document the site, she quickly discovers that the building does not behave like a normal place.
Rooms shift. Time fractures. And the voices she hears do not belong to the dead-but to something far older, pressing against the edges of reality. Guided by a man who knows more than he should, Mara uncovers a terrifying truth: Blackthorn is not haunted. It is a gateway. As the boundary between worlds begins to collapse, Mara must confront a presence beyond comprehension-one that does not seek to haunt, but to enter.
And it has been waiting. A must-read for fans of Lovecraftian horror, cosmic dread, supernatural mysteries, and eerie psychological thrillers.