Seer's Choice (Book 3 of The Seer Trilogy)...
SEER'S CHOICE (Book Three of The Seer Trilogy) By Maree Anderson
Ryley has traveled across worlds and discovered his soul mate living in the Earth town of Seaview… his mother’s hometown. Watching Rowan from afar is one thing, but actively interfering in her destiny? That’s against “the rules” in so many ways—especially when your mother is the most powerful Sehan in Dayamaria, and your grandmother happens to be a goddess. If anyone discovers where he’s been disappearing to—and why—there’ll be big trouble. But he can’t give Rowan up, especially now her strange powers have spun dangerously out of control. And when Dayamaria is threatened by a deadly predator immune to magic, Ryley must choose between the woman he loves and the people he left behind.