Ever since she fell from the sky, Ava has been in hiding. Her ancestors once lived among the stars, but now they’re all gone—and the Astronomer King, craving the power in her bloodline, is looking for her. She’s lost her friends, her home, even her adoptive father, Lux, with no real hope of getting them back.

But everything changes when she meets Oberon, a tattooed desert boy with magical gifts. The closer she gets to this shy, doomed guardian, the more she remembers—and the clearer it becomes that her best hope lies inside the cocoon that carried her through the atmosphere. Too bad it’s locked away in the Astronomer King’s most secure tower.

As her enemies close in, Ava moves to steal back what’s hers. With the cocoon she could help Oberon, free her father, even see her true home again—or she could go the way of her ancestors and disappear.