The apocalypse didn't just take the lights. Now it's hunting them.
The heat is relentless, water is running out, and something is moving through the dark hollows of Kentucky that has no interest in mercy. When escaped tigers stalk the forests and the Rebel Sons MC strips the town pharmacy bare, Burgundy Mackenzie faces an impossible choice: let her sister Poppy die, or go to the one man she can't afford to owe again.
Frost Hellebuyck has always kept the club's violence at arm's length. But agreeing to help Burgundy pulls him into the MC's brutal hierarchy deeper than he ever planned to go...and deeper than he can easily walk back from. Far from home, Auburn survives a savage betrayal on the lawless roads and finds an unexpected ally who may change everything, and Cormac, finally free of his murderous traveling companions, presses toward home through fire and ruin, making choices that would break a lesser man.
Then the ham radio crackles with something worse than any storm: Mycosis-A, a deadly ancient plague unleashed from the melting Greenland ice, is spreading. The collapse was just the opening act. In a world gone dark, the most lethal enemy yet is invisible...and there is no race fast enough to outrun it.