The refined Arab courtier Ibn Fadlan is accompanying a party of Viking warriors back to their home. He is appalled by their customs—the gratuitous sexuality of their women, their disregard for cleanliness, and their cold-blooded sacrifices. As they enter the frozen, forbidden landscape of the North—where the day’s length does not equal the night’s, where after sunset the sky burns in streaks of color—Fadlan soon discovers that he has been unwillingly enlisted to combat the terrors in the night that come to slaughter the Vikings, the monsters of the mist that devour human flesh. But just how he will do it, Fadlan has no idea.

    Six students have taken cover in Cortege High but shelter is little comfort when the dead outside won't stop pounding on the doors. One bite is all it takes to kill a person and bring them back as a monstrous version of their former self. To Sloane Price, that doesn't sound so bad. Six months ago, her world collapsed and since then, she's failed to find a reason to keep going. Now seems like the perfect time to give up. As Sloane eagerly waits for the barricades to fall, she's forced to witness the apocalypse through the eyes of five people who actually want to live. But as the days crawl by, the motivations for survival change in startling ways and soon the group's fate is determined less and less by what's happening outside and more and more by the unpredictable and violent bids for life—and death—inside. When everything is gone, what do you hold on to?