Reborn (The Red Ledger #1-3) by Meredith Wild

Meredith Wild does it again with another 5 star book!! Tristan is a hired assassin with no memory of his past until he is hired to add Isabel's name to his ledger. He can't shake the feeling he knows her from somewhere. Her voice sends chills down his spine, her face makes him smile and than she calls his name.
Now they are both in hiding trying to save each others lives. But being under cover is not the best place to be to rekindle a relationship.
Isabel still loves Tristan, but he still has no memory of her. While trying to stay alive they both have to get to know each other again. The physical attraction is still there and now Isabel needs to mend her broken heart and Tristan needs to try to get his memory back so they can spend the rest of their lives together.