A salvage operator discovers a derelict, ghost-like freighter drifting in the English Channel, setting off a high-stakes investigation into maritime insurance fraud and survival. John Sands, a salvage captain, boards the Mary Deare only to find the ship's mate, Gideon Patch, struggling to keep the vessel afloat amidst a series of suspicious mechanical failures and a missing crew. Patch’s desperate attempts to save the ship and his own reputation force Sands into a dangerous alliance against powerful corporate interests and the unforgiving sea. The narrative unfolds through a tense, first-person perspective that emphasizes the claustrophobic atmosphere of the decaying freighter and the legal scrutiny that follows the incident.

This novel is widely regarded as a quintessential example of the maritime thriller genre, praised for its technical authenticity and mounting suspense. Readers often highlight the author's ability to transform the mechanical details of ship salvage into a gripping narrative of human endurance. The story maintains a steady, methodical pace that mirrors the gravity of the legal and physical challenges faced by the characters. It remains a staple for those interested in mid-century adventure fiction that prioritizes atmospheric tension over sensationalism. The work is frequently cited for its realistic depiction of the sea as both a physical environment and a catalyst for moral conflict.