The Vampire With the Dragon Tattoo by Kerrelyn Sparks (Love at Stake #14)

Dougal Kincaid has something to prove. After being injured in a battle with the Malcontents, he's ready for active duty protecting unsuspecting mortals from these villainous vampires who want to rule the world. But first he has to get control of himself . . . because just the sight of a certain lovely doctor has his injured hand doing some peculiar things, not to mention the sizzling sensation that burns along his dragon tattoo.

Vampires? Vampires?! As a scientist, Leah is having trouble believing that these immortal creatures exist. But there they are, standing in front of her, asking for help in solving a genetic puzzle that can save mankind. There's even one in a sexy kilt! Just one look into Dougal's gorgeous green eyes sets her pulse racing. But can she trust him—and the overwhelming desire that refuses to be ignored?