Sweetest Surrender (The Serafina: Sin City #3)
by Katie Reus
This is the 3rd book in the The Serafina: Sin City which is a spin off from the Red Stone Security series.
Angel is a fairly interesting character with quite a story behind her. She is a sweetie and really only has one twit like moment. Vadim though, he is freaking adorable. He's slightly shy and awkward but still really hot. There was enough mystery and plot twists to keep this fun to read, and the ending is just too cute.