Knight: Allie's War, Book Five by JC Andrijeski
Series: Allie's War, Book 5.
Approx. 257,340 words.
Published on June 28, 2012 by
White Sun Press.
With several groups of hostile seers hot on their trail, Allie and Revik set up camp in New York, dragging the remnants of their seer alliance with them. Then a human-killing virus strikes in San Francisco and Allie’s friends start to disappear, forcing her to decide whether to try to save those who are left, or go to war with the mysterious Shadow, who seems to want to wipe out humanity entirely.