About this book:

After returning to her coastal hometown of Greyhaven to settle her late father’s estate, investigative reporter Claire Brennan discovers a leather-bound ledger hidden in his desk. The book contains decades of cryptic maritime logs and symbols that suggest her father, a respected pillar of the community, was the secret accountant for a massive smuggling and corruption ring. When Claire’s sister, Maren, suddenly disappears after investigating the same secrets, Claire realizes the town’s plan for a modern waterfront redevelopment is actually a front to permanently bury toxic waste and evidence of criminal activity in the sea caves beneath the Black Reef lighthouse.

Joined by a resilient but traumatized Maren, who escapes her captors at a local cannery, Claire begins a dangerous game of cat-and-mouse with Everett Mallory, the powerful developer behind the scheme. Guided by the lighthouse’s elderly keeper, Elias Crowe, the sisters decode the ledger to find physical proof of the corruption. They discover that for forty years, the town’s elite have used the lighthouse’s "blind spots" to dump hazardous materials and move illicit cargo, a conspiracy that eventually coerced their father into a life of complicity to protect the town’s solvency.

In a climactic confrontation, Claire and Maren infiltrate the lighthouse and the caves during a fierce storm to secure environmental assays and photographic evidence of the ongoing dumping. Despite being hunted by Mallory’s enforcers and facing betrayal from the town’s established institutions, they manage to transmit the evidence to federal authorities and the regional press. The subsequent exposure leads to the arrest of Mallory and the collapse of the corrupt local government, finally breaking the "code of silence" that had gripped Greyhaven for generations. In the aftermath, the sisters find a sense of peace, having cleared the air of their father’s secrets and ensured a future for the town based on truth rather than hidden rot.