What's this story about?

Cabal, born to a vampire mother and human father, is a being trapped between two worlds. He has made it his personal vendetta to exact revenge against his now vampire father, and rogue, Renate, for taking her gift of immortality and rejecting her, pregnant and alone. The event drove her slowly mad - until she came to blame it on Cabal.

She forced him to kill her in order to survive - and he will never forgive Renate for driving her to that point.

He's spent 550 years tracking his father down, but when the moment finally comes, will revenge be as easy to achieve as he thought?