From the author of THE SILO SERIES comes a thrilling space adventure that Locus calls "a raw exploration of what it means to really be a human and why that matters," following a man struggling to keep the darkness at bay in the wake of a devastating war

For centuries, men and women have manned lighthouses to ensure the safe passage of ships. It is a lonely job, and a thankless one for the most part. Until something goes wrong. Until a ship is in distress. In the twenty-third century, this job has moved into outer space. A network of beacons allows ships to travel safely across the Milky Way at many times the speed of light.

These beacons are built to be robust. They never break down. They never fail.

At least, they aren't supposed to.

With Beacon 23 bestselling author Hugh Howey delivers white-knuckle suspense with aliens, war, and madness all combining in a story of one man's battle against the solitary blackness of space.