t that?" gasped Frank. "That's fierce!"

"Is it the same vessel you saw off Land's End, Frank?" asked Ned.

"I'm sure I can't say," returned the other. "I think it is! Of course,
we're somewhat below it. Besides the difference in perspective from this
angle the water has a great deal to do with changing the appearance of
everything. The general outlines appear similar, however."

"Then we're in a ticklish position!" declared Ned. "Suppose those fellows
take it into their head to torpedo us?"

"If they do," stated Frank decisively, "they'll play havoc!"

"They're going over the wreck!" stated Jimmie in a whisper.

"Let's rise a little and see which way they head for," proposed Frank.
"We can then go in the opposite direction for a while."

"I think we'd better slide right along to the southwest," stated Jimmie.
"I know I'm meeting a good deal of opposition, but I've a hunch that
we'll be better off if we get right away from this spot!"

"Been reading that dream book again, little man?" asked Ned, with a
laugh. "Sorry, Jimmie, but the majority seems to be against you!"

"All right, Boss!" returned Jimmie with a smile. "I'm game to stick with
the bunch! You'll find me right here smiling all the while!"

"Jimmie," gravely stated Ned, "I wish we could all get some of that sunny
disposition of yours. We need a lot of your optimism."

"Thanks!" was Jimmie's reply, delivered with an excess of politeness.
"Now, I'm at the wheel, Captain. Where to, sir?"

"Let's rise first and see what the other is doing!"

"Ding, ding!" cried Jimmie. "Touch up the mule, Harry!"

Harry's manipulations of the levers brought the false "U-13" rapidly to a
level with the Wanderer's deck. Through the port lights the boys could
see the other submarine across the sunken ship. It seemed to be gradually
descending toward the bottom.

"Let's follow them and see where they go!" proposed Jack.

"At your service, sir!" cried Jimmie, saluting. "We'll proceed to
proceed!" he added with a grin. "Here goes after the real 'U-13'!"

"Go ahead slowly, Harry," cautioned Ned. "We don't want to overtake them
yet. We're in the shadow here, so they probably won't see us if we hang
back a little. Just give the wheel a little kick."

Slowly the vessel carried the boys over the sunken Australian. They were
passing between the main and mizzen rigging at a level slightly lower
than that of the main yard.

"What's that just ahead of us?" queried Jack, at th