Jewel of Atlantis. Gena Showalter. 2010.

Legend claims the Jewel of Dunamis can overcome any enemy. Grayson James has orders to keep it from the wrong hands - or destroy it. He doesn’t know that the Jewel is actually a woman, not a stone! But once he meets this precious gem, destroying her is the last thing on his mind…..

Jewel is a pawn in Atlantis’s constant power struggles. She needs Gray’s help to win freedom and uncover the secrets of her mysterious origins. Gray needs her wisdom to navigate monster-ridden Atlantis.

But need blossoms into passionate love as they fight demons, dragons, vampires - and a prophecy that says the bond between them could destroy them both.