The sea has turned to sludge. The air tastes of rust. The town is rotting from the inside out. Marcus Holson returns to Havenwood, Maine, to sell his dilapidated family estate and bury the trauma of his brother's disappearance fifteen years ago. But the town he left behind has transformed into something oppressive and strange. The locals are preparing for a ritualistic festival, the streets smell of copper and decay, and Marcus's antipsychotic medication can no longer suppress the wet, dragging footsteps echoing in his empty house. As the atmospheric pressure plummets, the ocean recedes only to return as a colossal wall of crimson slime, sealing the town off from the world. Marcus realizes the "Deep Tide" is not a celebration, but a biological siege. Isolated in the lighthouse and fighting to distinguish between a psychotic break and a terrifying reality, he must uncover the nature of the entity in the water before it consumes the only person he has left. When the water turns red, sanity is the first thing to drown. For fans of: - H.P. Lovecraft's *The Shadow Over Innsmouth*- The biological strangeness of Jeff Van der Meer's *Annihilation*- Stephen King's *The Mist* and atmospheric isolation- Psychological horror where reality is the ultimate enemy -From the author of Stairway to Darkness and Many more -