The Ylem (The Ylem Trilogy #1) by Tatiana Vila

An ancient book, a seventeen-year-old girl and an exotic boy from a supernatural world hold the key to freedom for a long-oppressed race, but that freedom could come at the cost of the human world.

Seventeen-year-old Kalista is suffering from a broken heart, so when her playwright father proposes they move their lives from New York to New Mexico because he is in need of inspiration Kalista is 100% on-board with him. New Mexico proves to be the perfect balm for her wounds and she is just starting to feel some of her old spunk when Tristan Winfield comes into her life and pulls all of her barriers down. Kalista is captivated by Tristan's unusual silver eyes and feels an inexplicable connection to him, which begins to manifest itself in her dreams with bizarre images of a waterfall and an orb.
While searching for an explanation for her troubling dreams, Kalista discovers an ancient book which holds the secrets of a supernatural race of creatures. But when Killings hit town, she realizes her finding has come at a high price. She's in the middle of a power struggle now, and a secret seems to be wrapped within the pages of that book. A secret she and Tristan are part of...