"Where's the danger?" asked Glennie. "Our worst enemies are sailing around the Horn; we're well to the north of them and are due in the Pacific before they are."

"You forget one important point: The Japs have a wireless outfit aboard, and there is another station at Punta Arenas. Suppose the news is flashed out that the submarine Grampus is in the harbor? What's to prevent the Japs from picking it up?"

"That's so," muttered Glennie. "I hadn't thought of that, but it isn't much that gets away from you, Matt."

"I've got a big responsibility on my shoulders and can't afford to let anything get away from me. Even if the news did reach the Japs that we're in the harbor at Sandy Point, headed west, we'd still be ahead of them and their steamer. But they're so full of wily tricks they might hatch up something to make us trouble."

"I'm mighty glad they're going around the Horn, and not us," said Glennie. "You were wise when you made that change in the programme, Matt."

At that moment, Dick and Carl came dragging the leader of the escaped convicts into the periscope room. The fellow began to talk as soon as he saw Glennie.

"Pay attention to him, Glennie," said Matt, taking the wheel out of the ensign's hand, "and let us know what he's saying."

Glennie stepped over to the prisoner and listened to his talk.

"He's making threats," observed Glennie, "and his talk's not worth listening to."

"What does he say?"