This review was first posted on http://www.rubysreads.com. 
 I think one of the things I like about the Highlander books is their sameness. I know what I'm getting with each book because they all follow a similar pattern. There's always a highly masculine alpha-type Highland hero from another era and a smart, pretty modern heroine who, despite the lax sexual mores of her peers, is still a virgin. It's a foolproof formula, if you like that sort of thing. I've mentioned before that I like virgin heroines as long as they work with the story and the character. KMM does a good job with this--her heroines are generally still relatively young. There tends to be something in the heroine's past that has led to her old-fashioned views towards sex, but that thing has made her cautious, not dysfunctional. Thank goodness. 
 Because Spell of the Highlander followed the pattern, it was an easy read. It also meant that my interest waned about three-quarters of the way through. I'd been through most of it before: the hero's past is not exactly lily-white. The heroine is convinced he is a Good and Worthy Man. He's attracted to her and is interested in "tooping" (I kind of hate that word) right off. Plus, the heroine is in Danger and must be Protected. As an interesting twist, the hero (Cian) is stuck in a mirror. He can come out if Jessi says an incantation, but he never knows how long he has before the mirror pulls him back. It makes him kind of unreliable. Add to that, Cian is from the ninth century and doesn't know Jessi's modern world and therefore its dangers (being tracked through credit cards, emails). Luckily, Cian realizes his limitations and he makes a plan: he's going to take Jessi to Scotland and they'll live off the land--he'll do the things a man did for his woman in his time: hunt food, provide shelter and, yes, "toop" her. Shudder. Like, a lot. 
 Predictably, things don't go as Cian plans. Being tied to the mirror has the kind of drawbacks you'd expect. Plus, Cian doesn't plan on sticking around after all the sex--he has plans for revenge on the man who imprisoned them in the mirror. Plans that don't include living afterward. Because he's a KMM hero, Cian doesn't share his plans with Chloe. It's the downside of her alpha heroes--they think they are protecting the heroine by withholding information, never realizing that the withholding is as painful as the secrets themselves. 
 In Spell of the Highlander, you'll be happy to know that we reconnect with some familiar characters. Drustan and Gwen make an appearance, as do Dageus and Chloe. Adam Black is briefly mentioned. There are babies--both in existence and in the offing. Lovely. I was tickled by a scene that features Chloe and Gwen checking Cian's butt out. It was gleeful and perfectly sweet. I like to think of Chloe and Gwen as good friends as well as sisters-in-law. Even if I haven't read Gwen's story yet. There are also plenty of chuckle-worthy moments when Drustan and Dageus meet Cian. Lots of testosterone in the room, lots of posturing, lots of jealousy over passing glimpses of male body parts. All the Keltar men are superb physical specimens and the ladies make no demure about appreciating them. It's cute. 
 I'll definitely be reading some of the other Highlander books, though I don't think I'll read all of them. A few years ago, when I discovered Linda Howard, I went on a binge. I read everything she'd ever wrote and then I started on similar authors. After a time I got sick of them--just like you do when you gorge on chocolate (it's sad, but it does happen). I have a feeling that KMM's Highlander books are going to be like that. I'll indulge in them and love the first four or five, but eventually, the formula will start to bore me instead of make me tingle. So, I'm going to enjoy the feeling while I can. I suggest you do the same.