An ice age strikes a chain of islands, and thousands come to seek sanctuary at the gates of Villjamur: a city of ancient spires and bridges, a place where banshees wail the deceased, cultists use forgotten technology for their own gain and where, further out, the dead have been seen walking across the tundra. Paperback , 497 pages Published October 1st 2012 by Tor Books (first published May 22nd 2009)