NY Times and USA Today Bestseller! (and one of the first books Gena ever wrote)
Grace Carlyle's world was about to change . . .
Deep in the jungle on the trail of her missing brother, Grace never expected to find a secret world populated by mythological monsters -- nor guarded by a sword-wielding being whose beauty put mortal men to shame.
Darius en Kragin belongs to a race of shape-shifting warriors sworn to guard Atlantis and kill all travelers who stray within its boundaries. Yet when Grace stumbles into his realm, he finds himself tempted to betray his centuries-old vow.
Now their forbidden love will either bring their worlds together -- or tear them both apart.
Here's the original cover for this book:
And the below is one of the concept covers I found online: