In Lock Haven, a quiet little town in Washington State, Bird Street is a special place. The residents of this pretty cul-de-sac on the edge of the woods are all successful, healthy and happy. But come November, the Darker Days descend, bringing accidents, bad luck, conflict and illness. It is in November when a stranger appears to collect on a longstanding debt. A price must be paid for the good fortune the Bird Street community enjoys the rest of the year. A sacrifice must be made. So it has been for more than a century. To assuage their guilt, the residents of Bird Street choose carefully who will be sent into the woods. Usually, it is an elderly or terminally ill individual who wishes to enter the void with dignity. But this year, things don’t go according to plan, and events take a terrifying turn.

On a foggy winter morning, high school kids Luca and Emma discover the impossible: the wreck of an 18th-century ship stranded in a flower field. Emma enters the hatch on the deck and is never seen again. And she isn’t the last to disappear. Soon a government agency begins to investigate, determined to uncover the ship’s secrets before a media storm erupts. They enlist Robert Grim, a retired specialist of the occult, to unravel the mystery, and he soon realizes the ship could be a harbinger of an ancient doom awakened under the sea. In a maelstrom of international intrigue and pure terror, Grim and Luca must race against time as they come face to face with an open doorway to the apocalypse.

Travel journalist and mountaineer Nick Grevers awakes from a coma to find that his climbing buddy, Augustin, is missing and presumed dead. Nick’s own injuries are as extensive as they are horrifying, and he claims amnesia --- but he remembers everything. He remembers how he and Augustin were mysteriously drawn to the Maudit, a remote and scarcely documented peak in the Swiss Alps. He remembers how the slopes of Maudit were eerily quiet, and how they got the ominous sense that they were not alone. But it isn’t just the memory of the accident that haunts Nick. Something has awakened inside of him, something that endangers the lives of everyone around him.