The Stone of the Sea

Sarah, now the Siren, is aboard the battleship Intrepid, where she is rapidly gaining new powers linked to a mysterious stone at the heart of her technology. As Nakima struggles to regain her own abilities, a determined stowaway, Cassandra, fights to protect the stone from unseen forces lurking beneath the waves. The story unfolds amid a backdrop of shifting powers, mythical creatures, and high-seas adventure.