The Barrier Between - by Stacey Marie Brown

Book Synopsis

The hunter has become the hunted.

Zoey Daniels is on the run for her life. Hiding from the very people she used to work for. She just found out her whole life was a lie, a science experiment of DMG. One with a fatal flaw-one that could kill her-taking Ryker's magic with her forever.

With their relationship changing and their shaky alliance growing into something more, they are in a race against time. Ryker, Zoey, and a narcoleptic monkey-sprite, Sprig, set out to find a way to transfer his powers back before it's too late. Their journey takes them to the rainforests of South America, dealing with those who are after something Ryker possesses and who will stop at nothing to obtain it for themselves.

What Zoey and Ryker discover could destroy them...tearing them a part for good.