Mermaids are being hunted . . . When one of their closest mermaid friends is imprisoned in a science lab, Cordelia and Wade insist on taking up the quest to find the lost island of Atlantis, a sanctuary for all water species. But the island is guarded by the dragon kings, an ancient and formidable race who are determined to keep it for themselves.Cordelia and friends must travel to distant pockets of the earth to collect the magical jewels that open the portal to Atlantis. But no one remembers how the jewels work, instructions are non-existent, and tensions are rife as Wade's ex-girlfriend appears on the scene determined to win him back.Cordelia's heart breaks as she watches the love of her life waver. When Wade is fatally wounded, she fights for her right to be by his side, inciting a rift between the mermaids and selachii once again.Can Cordelia and Wade repair their fractured relationship before it is time to face the dragon kings, or will the fate of Atlantis be lost to them forever? The race against time has never been more treacherous, and the fate of mermaids hangs in the balance.