Sea Serpent's Heir Book 2: Black Wave — Mairghread Scott

For fans of Nimona and Teen Titans: Raven!  The high-fantasy, high-seas adventure continues!  Aella sets sail with her mother's pirate crew on a quest for revenge. As more secrets about her origin are revealed, Aella begins to embrace her dangerous and powerful dark side, leading her down a path from which there may be no return…The acclaimed YA fantasy trilogy continues from the powerhouse team of MAIRGHREAD SCOTT (Dragon Age: Absolution, Guardians of the Galaxy) and PABLO TUNICA (Teenage Mutant Ninja Turtles).