On the beautiful world Adalta, an ancient threat emerges. Young Marta is dropped to the planet for her first secret mission alone. Raised by her father on an orbiting trade ship, he trained her for this – and to live by two rules: Don’t get attached. Don’t get discovered.
Someone is smuggling high-tech weapons to use in the bitter power struggle between two noble brothers. Marta knows she must stop this threat, and she reluctantly joins forces with the handsome but arrogant Altan. As cover for her mission, Marta joins the Mi’hiru, the all-female elite guard who patrol the skies on Karda, majestic hawk-headed flying horses.
As her connection to her Karda – and to Altan – deepens, and as she develops frightening new elemental powers, Marta struggles to keep her secret and to keep the rule of not getting attached.