Once

Remember the faery stories you were told as a child? Tales of tiny, magical, winged beings and elves, wicked witches and goblins. Demons . . .
What if one day you found out they were true? What if, when you became an adult, you discovered they were all based on fact? What if you met the fantasy and it was all so very real?
That's what happened to Thom Kindred. The wonders were revealed to him. But so were the horrors, for not far behind the Good, there always lurks the Bad. And the Bad had designs on Thom. The Bad would show him real evil.
Once isn't actually a horror story, but a fairy tale for the modern age. Thom Kindred returns to his ancestral home within the grounds of Castle Bracken. He hopes to reconnect with old friends and forgotten memories... but it comes with a cost. Thom soon discovers that fairies are real, and so too are other, darker things.
It's a good book, except... too much descriptive sex scenes for me...