I think I'm going to write this particular book off as a "pilot episode" (meaning it didn't work for me at all, but presumably the rest of the series may be better).
Adrienne's past relationship seemed contrived and unreliable (a duplicitous, amoral, twentieth century fiancé that just happened to leave her virginity intact?), and the fairy villain of the past-present-future seemed just as two dimensional. I was also distracted by the former orphan turned adult that seemed to have unlimited vacation, personal funds, and the ability to change her identity and run away with said funds intact.
Despite my dislike of most of the other main characters, I did enjoy Hawk (although his anguished insistence that Adrienne call out his “real” name during sex made me laugh on numerous occasions. Most women can barely form the words “Oh, God” when overcome with passion, and you want her to say “Sidheach”?!). While the "horse" references were gratuitous, I felt Hawk was one of the only characters in the book with realistic reactions and motivations. His numerous “manly” skills, along with his nurturing desire for a family, were more than enough to win my affection.
I see so many glowing reviews for this particular book, I’m going to chalk my dislike up to mood and happenstance. I may just have too many other fantastic Scottish time-traveling romances to make room for this particular book.