Queen of the Night (Book One of the Elementals)

Ethea has long been plagued by a monster named Fangril, created to force the Elements to coexist. Only the Elementals can stop it, if their unity is unbreakable; none have. Chosen as the Moon, Zelenia sets off on her quest to find her twin, the Sun, and the rest of the Elementals, then together, they can eliminate Fa...

Elementals

Long ago, there was one big crystal. That crystal represented the main four elements; fire, water, air, and earth. It also represented the rest of the elementals. Those are called back up. Years later, Sena's ancestors broke the crystal into different parts, and made them necklaces. Some time later, the main four el...