December 1348. Everything around is under the power of the plague. Brothers John and William fear they will soon die and burn in hell for their sins. But when they have only 6 days left until death, they are given an unexpected choice: go home and spend the rest of their lives in the familiar world—or try to find salvation in the coming centuries, living each of their remaining days ninety-nine years after the previous one.
The brothers choose the future and end up in times increasingly far away—and increasingly incomprehensible—to them. Together with them, the reader will experience illness, progress, enlightenment, and war. But their time runs out—will they be able to find their redemption within such a short period?