Overpopulation, disease, and ecological disaster were edging humanity toward extinction. Hope arrived in the haan, an alien race that promised us a future. And what they wanted in exchange seemed so harmless... Sam Shao has found out too much about the haan, by accident. All humans have to get along with them--we owe them our lives--and Sam even counts a haan among her best friends. But the more she learns, the less she trusts them It doesn't help...