When the girls discover a cryptic message carved into the sand-"THE LIGHTHOUSE KNOWS"-they are pulled into an unsolved mystery tied to Avenmoor Island's old lighthouse, which has been abandoned since a brutal storm ten years ago. As they explore the island, they uncover hidden messages, coded symbols, and evidence that someone-or something-is leading them deeper into a web of secrets involving: • A lost treasure ship that wrecked off the island's coast, • A secret society that once protected the lighthouse's true purpose, • And a strange power source hidden beneath the lighthouse, linked to ancient nautical legends. The girls follow a trail of clues-each one riskier than the last-while being watched by someone who doesn't want the truth revealed. In the final chapters, they'll uncover the shocking truth about the lighthouse, the storm, and a decision that could change the future of the entire island.
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