"MacRieve" by Kresley Cole

This is book 13 in the Immortals After Dark series and is much better than the last one, which I reviewed in 2012, "Lothaire."  Uilleam (Scottish for William) MacRieve is a Lykae, a centuries old clan of warriors each with the spirit of a wolf within them that sometimes rises.  Will's parents and unborn sister died because he was seduced by a succubus when a young teen.  He has lived with this guilt for over 900 years and hates himself intensely.  In previous books, Will and other immortal creatures of the Lore had been captured and tortured by a group of humans called The Order, but he escaped only to be tormented by what was done to him.  He contemplates committing suicide, but when he hears that the daughter of the leader of The Order has been captured and is up for auction, he and his twin brother, Munro, decide to try to buy her to lure her father into a trap.  However, when the captured human woman turns out to be his one true mate, their plans take a complete turn.  Now they must protect her from the other creatures of the Lore who want to torture her for her father's crimes.

Chloe Todd has no idea why she's been taken prisoner and put up for auction by witches.  She's trained all her life to play soccer in the Olympics, and just as she's made the team, her father disappears after giving her a book on supernatural creatures called the Lore.  Not only is she confused by his absence and this book, her body has started behaving in ways she can't control.  Is she really human or did her long dead mother pass something else on to her daughter?  If so, what is it?

Will is a likable, sympathetic hero (most of the time), a Scottish warrior who's had more than his share of tragedies.  At the beginning of his story, he's contemplating committing suicide.  Even though he is considered immortal, there is a way it can be done, but when his wolf scents Chloe on the auction block, he is finally given a reason to live.  Chloe embodies most if not all of the characteristics that make a classically great heroine - physically and mentally tough, unwilling to take crap from anyone (even immortals physically stronger and bigger than she), quick with a retort, and open to new experiences.  Without giving too much away, Chloe and Will are in deep conflict through parts of the book, but she remains strong and defiant.  I really enjoyed this entry in the IAD series and am anticipating Munro's story in the next book.  (The series should be read in order; they are not stand alone books.)  358 pages.