During a blizzard, a number of alien ships crash-land in the frozen lands of America's Midwest and southern Canada. Father Joshua spearheads the attempt to integrate the survivors, named the Wannoshay by their hosts. When an unexplained series of explosions occurs, however, the new arrivals are blamed and interned in camps. There, they sicken-and soon humans fall ill as well. Jasper's first novel (he has previously published short fiction) makes important points about the current treatment of immigrant populations while telling a story of sacrifice and courage that belongs in larger libraries.