A Dance in the Moonlight - Megan Smith - Bog

Raine Bellator had learned long ago that it was better never to feel, never to let anyone get close. Experience had taught him that those he loved only ended up hurt. So, when he looked up and found his Seraphin in a woman with innocent, beautiful eyes...he walked away after indulging in one intoxicating moonlit waltz.
A century later, he was being sent back in time on assignment...to save his Seraphin and her father from an enemy determined to kidnap and uncover all their secrets. It had nearly killed him to leave her once and now, after working side by side trying to save her father, he's not sure how he'll find the strength to do it again.
Alexandra Browning had found herself enchanted by a stranger at a ball. When he stepped out of the shadows, something very much like recognition had touched her soul and when he'd swept her into his arms for a dance in a garden, she thought they'd taken the first steps into a hopeful future. Until he just...disappeared only to reappear out of nowhere and save her from an attack months later.
With her father taken and bewildered by the enemy's interest in her, she races to unlock the secrets of his formula and find a way to break through the wall surrounding Raine's heart before they lose their final chance for happiness.