A young man finds himself entangled in a complex web of maritime insurance fraud and social deception after discovering a derelict ship. Loudon Dodd, an aspiring artist, abandons his ambitions to join his friend Jim Pinkerton in a series of speculative business ventures. Their pursuit of wealth leads them to purchase a wrecked ship, the Flying Scud, which serves as the catalyst for a dangerous investigation into a missing crew and a hidden fortune. The narrative employs a multi-layered structure, utilizing flashbacks and shifting perspectives to reveal the dark realities behind the facade of Victorian commerce.

Discussion often centers on the novel's departure from the author's more famous adventure tales, noting its focus on the grit of business and moral ambiguity. Readers frequently highlight the effectiveness of the mystery plot, which slowly unspools the truth behind the wreck of the Flying Scud. Critics often point to the collaboration between Stevenson and Lloyd Osbourne as a factor in the book's unique blend of cynical realism and high-stakes suspense. The atmosphere is consistently described as grounded and observant, providing a sharp critique of the era's obsession with rapid wealth accumulation. Many readers appreciate the nuanced characterization of Loudon Dodd as he navigates the consequences of his choices.