At 2:13 in the morning, Nila hears her own voice coming from the far end of a sealed railway tunnel. Then an injured stranger falls through the wall—and she glimpses a world with a sea where the sky should be.

Seyr has come from Orthea, carrying a small machine and secrets that reach deep into Nila’s coastal city. As impossible doorways appear and familiar streets become unsafe, she discovers that saving one world may mean putting another in danger.

To find another way, Nila must cross the threshold herself, question the plans of powerful people, and learn whom she can trust—including the stranger she is beginning to care for.

The Man from the Unwritten Sky is a science fiction adventure about first contact, the cost of survival, and a growing bond between two people whose worlds were never meant to meet.