Some secrets aren't meant to stay submerged.

When reluctant heir Elara Winters returns to Azure Bay to settle her grandmother's estate, she expects to sign some papers, sell the old lighthouse, and leave the sleepy coastal town behind for good. Instead, she discovers her family has secretly protected the town for generations as "Keepers" of an ancient boundary—one that holds back something dark lurking beneath the bay's deceptively calm waters. As Elara grapples with her newfound legacy, she learns the protective boundary is weakening, and what waits beyond it grows restless. Every seven generations, the entity tests the boundary with increasing strength, and the current cycle is reaching its peak. With the summer solstice approaching, Elara must decide whether to reject her heritage like her mother did or accept the responsibility of becoming the new Lighthouse Keeper. Alongside Nathaniel Blackwood, a marine archaeologist with his own family secrets, Elara races to reunite all seven Keepers before the boundary fails completely. Each position—Lighthouse, Maritime, Garden, Time, Apothecary, Glass, and Archives—requires its rightful guardian to maintain the protective circle that has sheltered Azure Bay for nearly two centuries. But a powerful organization led by the mysterious Thomas Bryant has other plans for the boundary. They seek to exploit it rather than maintain it, viewing what lurks beyond as an opportunity rather than a threat.

The Lighthouse Keeper's Secret is a captivating paranormal mystery about ancestral duty, supernatural forces, and the courage to protect what matters most—even when it means facing the unknown depths of both water and self.