_Frostwing_ introduced me into the world of modern dark fantasy, a place i have happily been trapped in ever since. Knaak from page one drops you right into his world of sorcerors, vicious memory stealing gargoyles, and a line of descendants of a mad wizard.
Grigori Nicolau is our main character, a man haunted by Frostwing, a gargoyle that continually steals bits of Nicolau's memories bit by bit each night, only leaving him with pieces so unrellated that Nicolau can never put them together. Nicolau discovers however that finally he can find out who is behind Frostwing's power, what his past is, and what the future might hold for him.
If you're looking for a good modern fantasy, or want to introduce yourself to the genre Richard Knaak's _Frostwing_ is certainly a book worth picking up.