Lily and the Extraordinary Pearl (alt cover)

Lily Naiad thought she was a normal girl, but when her brother Adam was kidnapped by greasy black tentacles of the deep, her mom had to tell her the truth. She was a mermaid princess. Not only that, but she was a mermaid princess with a bodyguard who swung a flaming sword and with a talking otter who knew every fish in the sea. Now Lily had a decision: hide from evil Lord Revulso and his mutant hordes or find the Extraordinary Pearl and rescue her brother. Whatever happens, her life will never be the same.