About this book:

Isabel Arden returns to her childhood home in Port Harbor after her grandmother Alice's death, expecting only to settle the estate. Instead, she inherits a cryptic lighthouse logbook and embarks on a complex treasure hunt orchestrated by Alice. This journey quickly reveals that Port Harbor harbors a dark, century-old secret: the *Silver Fin* shipwreck was not an accident but a deliberate act of sabotage by "The Covenant," a shadowy group of powerful founding families who coerced Isabel's ancestor, lighthouse keeper Alistair Arden, to betray his duty and facilitate the theft of sacred indigenous artifacts.

As Isabel deciphers riddles and unearths clues, she finds herself in a dangerous race against Elias Thorne, a descendant of The Covenant, and later, against Eleanor Vance, the executor of Alice's will and a direct heir to the conspiracy. With the help of allies like Finn Hemlock, a local shipwright whose family also suffered from The Covenant's actions, and Lyra Finch, a guardian of ancient indigenous knowledge, Isabel uncovers a damning ledger, a hidden "Luminous Heart" artifact, and ultimately, proof of Alistair Arden's coerced involvement and his subsequent murder. The book culminates in a dramatic showdown at the lighthouse, where Isabel and her allies use a powerful holographic projection to reveal The Covenant's crimes to the entire town and the world, bringing long-awaited justice and beginning Port Harbor's journey of reconciliation with its past.