Dick presently appeared.

“Take charge of the engine, Dick,” said Bob.

“What are you going to do?” asked Dick.

“You’ll know in a few minutes.” He turned to Clackett. “Go up to the periscope room, Clackett,” he went on. “I may need you.”

“But say, Bob——”

“You heard what I said!”

There was that in Bob Steele’s voice and eyes that sent Clackett crawling forward along the passage.

Bob followed him. In the battery room they picked up Speake, and Bob sent him trailing after Clackett. In that order all three finally gained the periscope room.

“What the blazes is the matter with you fellows?” shouted Gaines, who was doing the steering himself, and was standing by the periscope table.

“Keep your eyes on the periscope,” said Bob. “Attend to your work, Gaines.”