"We will raise the periscope and show you what we are about to do," said the ober-lieutenant, with a half-malicious smile.
Von Schellen, his hand on the wheel of the periscope mechanism, awaited a nod from his chief. Receiving it, the younger officer turned the wheel, sending the periscope up a foot above water.
On the white surface of the shaded table beneath Dave saw the image of a vessel.
"The fellow yonder has not yet sighted us," said the ober-lieutenant, grimly. "We are about to send him a torpedo. Yonder craft is to be our game—Yankee steel and Yankee meat!"
As for Dave, as he stared in horror at the image on the table he recognized in the ship mirrored there Dan Dalzell's own command, the "Reed."
Forcing himself to speak calmly, and to act a part Dave begged:
"One moment longer, please! Let me see whether I can recognize the doomed craft."
"Doomed, indeed," chuckled the ober-lieutenant. "We are in position and I am about to fire. Be ready to drop the 'scope, von Schellen!"
But Dave Darrin, knocking von Schellen's hand away, seized the lever, forcing the periscope to rise to its full height above the conning tower. Nor did he stop there. With the mightiest twist and wrench of which he was capable he jammed the lever so that it could not be promptly operated to lower the periscope.
"Stop!" thundered von Schellen, leaping to his feet, his face purple with rage.