The cover of A Memory of Light Part 2 was used for "When True Night Falls" by CS Friedman.
http://www.amazon.com/When-Night-Falls-Coldfire-Trilogy/dp/0886776155/ref=sr_1_1?ie=UTF8&qid=1384273053&sr=8-1&keywords=when+true+night+falls
That's just being lazy. There were a couple others that were...