Be Still My Vampire Heart

Be Still My Vampire Heart is the third book in the Love at Stake series by Kerrelyn Sparks. The protaganists are Angus MacKay and Emma Wallace. The book is available as an unabrigded audiobook, read by Donna Rawlins.

Plot
One look at her was enough to stop his heart...

If it was still beating. Angus MacKay has been undead for almost five hundred years, and it's not often something, or someone, surprises him. Until Emma Wallace. The sight of this luscious agent from the CIA's elite Stake-Out team was enough to stop Angus in his tracks. But then he discovers that she's a vampire slayer, intent on killing the "monsters" who killed her parents. And it's Angus' job to stop her.

The only good vampire is a dead vampire. It's been Emma's motto since she committed her life to the destruction of these things. Now Angus MacKay wants to convince her differently. Sure, he's a sexy Highland warrior who seems to have stepped off the cover of a romance novel, complete with brogue, kilt, and sword, but he's also one of them. And it's her job to kill him.

The war is on, but will it end in the destruction of one or both of them...or in total surrender to a passion for the ages?