Promise by Kristie Cook
When Alexis Ames is attacked by creatures that can’t be real, she decides it’s time she learns who she really is, with or without the help of her mother, who guards their family’s secrets closely. After meeting the inhumanly attractive, multi-talented Tristan Knight, however, Alexis retreats behind her façade of normalcy…until she discovers he’s not exactly normal either. Then their secrets begin to unravel.
Their union brings hope and promise to her family’s secret society, the Angels’ army, and to the future of mankind. But it also incites a dangerous pursuit by the enemy – Satan’s minions and Tristan’s creators. After all, Alexis and Tristan are a match made in Heaven and in Hell.