The verr homeworld is doomed. Humans and tyrar have come together to help the species survive. The tyrar's assistance? A giant colony ship named Refuge, built to tyrar scale, refurbished to verr needs, and containing an AI shipmind, Alvi...a final refuge for the species if all else fails and a way to search for a new home.
 
On Refuge, a young verr named Kaykek has chosen this new life.
 
As the verr seek for a new home and fight those who think it is their fate to die with their world, Alvi learns how to be verr and Kaykek faces a forgotten biological destiny.