The Krinar’s Informant by Charmaine Pauls

Zavir is a guardian. He’s the best the Krinar has. His assigned vocation is to uncover the Resistance movements popping up around the earth, and eliminate them. New information about a fast-growing Resistance camp sends him to Costa Rica, home of the largest Krinar Center. His informant is a human girl. She wants to make a deal–her traitorous family’s lives in exchange for information–but Zavir doesn’t make deals, and he takes no prisoners. When the time comes to wipe out the secret organization, his pretty, innocent little mole will learn the truth. She made a deal with the devil, and the price is something far more tantalizing than information