Halfblood: Tails of the Ocean

Trying to fit in, Helena attends a senior year party, her final chance to make friends and gain the attention of Pete, her crush. But when a foolish prank is played on her, tragedy strikes, and Helena wakes up on the beach the next day. Confused by a vague memory, she returns home and learns she has been missing for three days. Soon, the mystery surrounding her disappearance resurfaces, revealing the secrets of the ocean.