CHAOS by Taylor Longford. It's too good to put down.
If you haven't checked out the Greystone Series yet, I can highly recommend it. I have enjoyed every book so far...
Think you know about gargoyles? The beautiful winged race disappeared eight hundred years ago. When they last walked the earth, they traveled in close-knit packs, their throats marked with ancient runes. Their greatest enemies were the ugly and brutal harpies that people today mistake for gargoyles.
The first book - VALOR - is FREE!!
THE GREYSTONE SERIES ON AMAZON.