A magical stone, a sea demon and treacherous love. When Citrine and Tor Lir survive the darkness that consumed the mountains, they awaken their latent powers and realize they are falling for each other. However, Citrine knows dark secrets about Tor Lir. Now, frighted by the truth, she needs to decide how to stop him. But first, Citrine must fulfill a promise. As a reward for defeating a sea demon, Citrine will earn a safe haven for her beasts. Enlisting the help of Tor Lir, Citrine travels into the heart of the underwater world. During their time in the depths of the watery world, they work together to unravel the mysteries surrounding those who dwell under the sea. But as Citrine discovers the depths of Tor Lir’s magic, she realizes she’s left with no choice. If she is to save the world, she has to destroy Tor Lir. Even though her heart doesn’t agree. . .