Sex Me Slow (Children of the Triad #4)
Tianna Xander, Bonnie Rose Leigh

Storm Vanier never thought to take a mate, but one look at the beautiful Amazonian, Felicity, and he knows his search is over. When Ryo of Kneese assigns him to hunt down and terminate Helio, the evil Hienial traitor, and rescue the two Amazonians he kidnapped, he didn’t expect to stumble upon a lost city–the city of his ancestors.
Brandt Somanta had waited centuries for this moment, the moment their people had prayed for and planned for long ago. As the prophecy of their salvation begins to unfold, Brandt welcomes the arrival of the newcomers, because only with them and their people, will the original Hienials have a chance to become whole once more.
As a slumbering city begins to awaken, danger and intrigue go hand in hand when the Children of the Triads search for a cure for the sickness that forced the Hienials to create their saviors.