Founf as an infant drifting in space, Acorna the Unicorn Girl, has becme a young woman. She still has her tiny, translucent horn and her "funny" feet and hands. And she still has her miraculous ability to make plants grow and heal human sickness.
But Acorna has strange dreams of a gentle folk who mind-speak by touching horns. With her "uncle" Calum, one of the three grizzled asteroid prospectors, who rescued, protected, and raised her, she sets off to find her people. No sooner does she leave that a mysterious craft appears, piloted by the Linyaari, a gentle race with telepathic powers.

Linyaari are roaming the galaxy, spreading the alarm about the deadly Khleev - and searching for a beloved girl they had given up for lost, long ago...