3.5 stars 
 Beth Argenis and "Scotty" MacDonald have been figuratively clashing swords for over a century. They cannot seem to get along, but they also seem to be irresistibly draw together as well. When the two are assigned to work together on a tricky and potentially dangerous assignment, they find that their connection is too hard to resist- but their timing might not be the best, as deadly trouble seems to follow their every move. 
 At first I was a little disappointed that Sands took a step away from the Island of Dr. Moreau-esque plot she had introduced previously in the series, but in exchange she gave me a Scottish immortal, so I can't really be too upset. (Swoon!) I enjoyed the byplay between Beth and Scotty, and while the mystery was a bit obvious, I did appreciate the complicated pasts that the two characters had to overcome before they earned their life mate status. Chalk up another successful entry in the Argeneau series- keep them coming, Ms. Sands! 
 Thank you to Avon/HarperCollins and Edelweiss for providing this ARC in exchange for an honest review.