Water, Book One of the Akasha Series

Elemental powers in the palm of her hand... and it won't be enough to save her. When Kaitlyn Alder is involuntarily introduced to a life of magic, she becomes part of an organization hell-bent on saving the Earth. Her newfound life holds promises of purpose, romance, and friendship, but the organization divides and a rogue member holds Kaitlyn hostage. Now one of the most terrifying men the human race has to offer stands between her and Earth's survival.