The G-man's son at Porpoise Island

"The G-man's Son at Porpoise Island" by Warren F. Robinson is a novel written in the late 1930s. The story revolves around Stanley Sandborn, the titular G-man's son, and his friend John Tallman, who embark on a sailing adventure that quickly turns into a perilous escapade involving mystery, danger, and the underworld. As they arrive at Porpoise Island, they become entangled in a scheme that involves suspicious activities, strange characters, and the need to use their wits and skills to survive. The opening of the story introduces Stanley and John as they set sail on their sloop, the "Water Witch", with plans for a camping trip among the Catlow Islands. However, their joy is soon interrupted by the sight of a mysterious speedboat, and they strike something submerged in the water, which hints at the adventures that await them. After reaching Black Cove, they witness strange lights and noises indicating that something illicit may be occurring nearby. Their curiosity draws them deeper into danger, especially upon meeting Mr. Nevens, a character wrapped in mystery and potentially sinister motives. As the boys navigate their adventure, they begin to realize they’ve stumbled into a larger plot that could endanger their lives.