The "Hastings" was now drifting, rather aimlessly, something more than
four hundred yards away from the scow. As the sea was roughening all
the while, the two submarine boys out forward were having a hard time
of it. Added to that, icy spray was falling over them.

Lieutenant Danvers quickly rang for speed and then brought the submarine
boat within about three hundred yards of the scow, and at a position that
pointed the nose of the "Hastings" at the middle of the scow's hull, the
line of fire making a right angle with the scow.

"Get ready to watch, out there!" warned the naval officer.

"Now, Eph," glowed Jack, "we're going to see the thing we've so often
dreamed about! We'll see that dummy torpedo leap forth, like a real
one. For a little way, at least, we ought to see the track of the
torpedo."

"Feel like betting the dummy will bit the scow?" questioned young Somers,
half doubtfully.

"Of course it will," retorted Jack Benson, scornfully, "with naval
experts on the job!"

Lieutenant Danvers gave the firing signal.

In the silence that followed, the two submarine boys hanging over the
nose of the boat heard just a muffled click below. Then--

"There it goes!" shouted Jack Benson, with all the glee in the world.