The G-man's son at Porpoise Island

The cabin sloop _Water Witch_ had cleared Centerport harbor and was well out in the bay heading towards the Catlow, or “Off Shore,” Islands when the first strange incident happe...

As John was afterwards to remark, that night in Black Cove turned out to be “A night as was a night!” The anchor had barely hit bottom when a flickering light, as from a half-co...

Dago picked himself up, trembling a little, and the boys sensed a tautness in the relations of Mr. Nevens and the man, which was relieved as the old man turned to the boys, wink...

The G-man’s son hurried below decks with John, and they changed to their white sailor pants and white jerseys. As they did so, Stan gave a low exclamation of surprise.

They paused but little in covering the distance to the cove where their sloop lay at her anchor and less time was taken in swimming out to her. Clambering aboard they hauled up...

It was well after midnight before the two boys turned in for the night, setting their alarm clock to ring at daybreak. And at dawn they awoke and held council.

“This fella can fix engines, Boss,” said the leader of the boat’s crew. “We got stuck at Main Haven and he fixed the trouble in a jiffy. He’s outa work and I thought----”

After a restless day at home and an even more restless night of fitful sleep, both Stanley Sandborn and John awoke and dressed in the still dark early morning hours. After biddi...

The _Staghound_ sailed away from the wharf at Zenith Village a very few minutes after the boy detectives had secured the fingerprints and the beer bottle, wrapped lightly in clo...

The fight between Dago and Gallagher was one of the shortest fights Cowboy Nevada had ever witnessed, for the G-man was strong, capable, possessed of dynamite in either fist, an...

When John came to, he fully expected to find himself held prisoner by none other than Mr. Nevens himself. His surprise was the more intense, as he shook his aching head and sat...

If ever two boys undertook a desperate errand the sandy-haired G-man’s son and his pal had bitten off a big chunk to chew when Stan proposed that they take Gagnon to Main Haven...

It was a tired and hungry duet of detectives who walked down the rickety old wharf about midnight and climbed aboard the good sloop _Water Witch_ now masquerading as a Marconi s...

Stanley Sandborn realized that there was little time to lose. Hegarty’s plans had been changed, and the identity of Mr. Sandborn was no longer a secret! Hegarty was evidently no...

The hoarse voice of Dago was rather near on the path as the G-man and the two boys ducked into the tunnel and groped hurriedly along, seeking for a hiding place off the main tun...

At Zenith Point Hegarty, starting Tuesday morning, had paced the deck all day, stopping hardly for meals, cursing fluently at the slightest interruption of his thoughts, and fin...

After the interview in Mr. Nevens’ den at which their fate had been sealed so far as Nevada was concerned, the two boys were hustled to the waiting room in which Stanley had bee...

After leaving the boys that afternoon in the capable hands of Butch, Gallagher had gone back to Nevada to talk over certain plans in connection with Hegarty’s expected attack. A...