This holiday thriller mixes festive atmosphere with future-shattering consequences, offering a high-stakes ride for readers who want more from seasonal fiction.

This Christmas thriller raises the stakes with a chilling scientific premise: small changes now could mean survival—or extinction—in the future. When a man from centuries ahead collapses near Kelly McCormick’s remote cabin, he brings more than physical wounds. He brings data, evidence, and a warning grounded in hard science: humanity is on a collision course with annihilation. But there’s a narrow window to alter the outcome—and it starts during this very Christmas week.