In the darkest part of the solar system lies a wormhole. Nether. Astrophysicist Cammie Skoura has joined the first research team traveling to the Nether anomaly, eager to understand the mechanics of the wormhole and to explore its possibilities as a shortcut to Alpha Centauri. But another race of ancient beings has already been here—an impossibly long time ago—leaving remnants of their vast complexes and gigantic temples built for horrific beings beyond comprehension.

It’s the house of their dreams. Former marine Harry and his wife, Sasha, have packed up their life and their golden retriever, Dash, and fled the corporate rat race to live off the land in rural Idaho. Their breathtaking new home sits on more than forty acres of meadow, aspen trees, and pine forest in the Teton Valley. Even if their friends and family think it’s a strange choice for an up-and-coming pair of urban professionals, Harry and Sasha couldn’t be happier about the future they’re building, all by their lonesome.

The Pandominion: a political and trading alliance of a million worlds–except that they’re really just the one world, Earth, in many different realities. And when an AI threat arises that could destroy everything the Pandominion has built, they'll eradicate it by whatever means necessary, no matter the cost to human life.

Michael Mace, head of security at a top-secret research facility, opens his eyes in a makeshift morgue twenty-four hours following an event in which everyone perished—including him and his best friend, Shelby Shrewsberry. Having awakened with an extraordinary ability unlike anything he—or anyone else—has ever imagined, Michael is capable of being as elusive as a ghost. He sets out to honor his late friend by helping Nina Dozier and her son, John, whom Shelby greatly admired.

The men onboard HMS Terror have every expectation of finding the Northwest Passage. When the expedition's leader, Sir John Franklin, meets a terrible death, Captain Francis Crozier takes command and leads his surviving crewmen on a last, desperate attempt to flee south across the ice. But as another winter approaches, as scurvy and starvation grow more terrible, and as the Terror on the ice stalks them southward, Crozier and his men begin to fear there is no escape.