The minor headlight of the Albatross guided them, and for this, a dim spark in the distance, the little yawl was headed. The water had become choppy, but the oarsmen felt equal to the task of the moment.

“Just see that!” shouted Hiram, as a phosphorescent streak crossed their course. “It’s like a streak of fire.”

“There’s another one ahead,” said Elmer.

“Yes, and look! look!” exclaimed Hiram. “It’s a shoal of fishes. Big fellows, too. Say, see them leap out of the water.”

It was a stimulating sight and a novel one to the boys. They were now within less than a quarter of a mile of the airship. As Hiram spoke, the big searchlight of the Albatross suddenly flared up. It signalled the boys to return, as Dave understood it.

“Say, I’m going to make a throw for one of those big fellows,” declared Hiram.

“Don’t do it. Whew!” exclaimed Elmer. “They are big fellows. Did you feel that?”

Some object had landed against the side of the yawl, nearly tipping it.

“It’s a big fish, almost as big as a shark!” shouted Hiram. “They’re chasing the smaller ones. Whoop! I’ve caught something. Hurrah! Slow down! Oh, the mischief!”

All in a fleeting second the excited lad shouted out, tugged at the trolling line, bracing his feet against the bottom of the boat, and then—flop! splash!