Keys to the Mermaid's Heart: Team Nightly, Book three

Lost to time and dismissed as myth, the Mermaid's Heart-a massive sapphire said to be forged by Zeus-holds unimaginable power, granting its bearer their deepest desires and eternal life. On the eve of the Civil War, three boys discover a hidden pirate's chest and three golden keys. Sworn to secrecy, they each take a key and vow to return. They never do. More than 150 years later, the treasure remains hidden in Savannah, its keys scattered among their descendants. Carly Harden never meant to become a target. After revealing she knows the truth about Team Nightly-and the man she loves, Tony Sargento-she finds herself caught between fractured trust and rising danger. When Vampire King Gordon Charles sets his sights on the keys, Carly is nearly killed. He already has one key. Carly holds another. Team Nightly must find the third key before the Vampire King- or darkness won't just rise... it will rule.