Detective Kosuke Kindaichi arrives on the remote Gokumon Island with tragic news: his friend and fellow soldier has died. Before his death, the soldier issued a grim warning that his three stepsisters’ lives would soon be in danger. Kindaichi, determined to protect them, begins to unravel the mysteries hidden within the island's secluded community.

As Kindaichi investigates, a series of brutal murders begins. He finds himself battling not only an unknown killer but also the suspicion of the clannish locals, who resent his interference in their affairs. This classic Japanese mystery, sometimes noted for its inspiration from Agatha Christie's island-set thrillers, is a pivotal work in Yokomizo's celebrated series.

Why You Should Read?

• A quintessential Japanese Golden Age mystery from a master of the genre.
• Features the iconic detective Kosuke Kindaichi in one of his most acclaimed cases.
• Offers a compelling blend of isolated island mystery and post-war societal tension.
• A complex plot with intricate clues and a gripping atmosphere.