Sea Queen by Heather Walker (ePUB, PDF, Downloads)‎

Lachlan McLean sets out to free Ivy Tennent from the clutches of Aegir, the God of the Sea. However, Lachlan quickly finds himself pitted against supernatural powers mightier than anything he imagined possible. Where can he find the power to save his own life, much less defeat the Sea God at his own game? Once Ivy leaves the undersea world, the hypnotic power entrancing her falls away.

She realizes she never loved Aegir, but she can’t go home to her own world, either. Just when she and Lachlan find each other, circumstances beyond their control threaten to tear them apart. Facing such devastating forces, can Lachlan and Ivy overcome unspeakable odds to preserve their fledgling love from destruction?