Midnight's Mask (Forgotten Realms: the Erevis Cale Trilogy, 3, Band 3)

The shadows deepen in every corner of the Realms.The sun no longer shines on a man who has embraced the darkness within him.The day's opposite finds Erevis Cale so far along the path away from his own humanity, he may never again walk as a man.In the end, to be Chosen by a god like Mask is more curse than blessing...