"If anything happens to me to-night, Lang, keep all this business to yourself until my son comes home. Tell him. No one else. We want to get to the bottom of this thing ourselves without any one else butting in to bungle the job. Do you understand?"

When Lang had gone to relieve the Mexican at the wheel Richard Gregory's thoughts turned to his son overseas. Should he have waited until his return? He wondered. It was a young man's work, such a job as this,—and yet,—no, it was better to get to the bottom of the thing to-night. His head sank lower on his breast. Perhaps he could snatch a few winks of sleep. He might need it.

The muffled rattle of the anchor-chain caused him to waken sharply, stiff with cold. The motor was silent. The launch rocked lazily. Through a rift in the fog he saw a rocky beach only a stone's throw away. They were anchored close by the shore.

"Hell-Hole," announced Lang in a whisper.

Gregory picked up his rifle.

For a moment the big fisherman by his side hesitated. Then he said: "Why not stay on the Gull, Mr. Gregory? Let Joe go ashore with me."

"No."

The answer was decisive. There were no explanations. Lang knew it was final. Assisted by the Mexican, he swung the dory free and lowered it quietly into the water. Helping Gregory into the small boat he turned to the Mexican and spoke rapidly in Spanish. Gregory could catch only the substance of a few sentences. Lang was telling Joe to stand by for a quick get-away. To watch the beach and start the anchor when he saw them coming. And above all he was to keep quiet.

The bow of the dory grated on the beach. The two men stepped out and without a backward glance slowly disappeared into the fog.