I
thought if I let him do it with this failing light he might do the Huns
more damage than he could us."
"How?" asked Joe.
"By not being able to give the proper signals. He'll need to flash a
light for some little time to make sure to attract the attention of the
submarine, won't he?"
"Probably," agreed Joe.
"Well, then, if, while he's in the midst of signaling, his light goes
out, the submarine won't know what to make of it, and will come up
closer to find out what's wrong. Then our own guns, or those of the
destroyers, can bang away and catch the Germans napping."
"Say, that's great!" cried Charlie, as soon as he understood the plan
Blake had so quickly evolved.
"If it works," conceded Joe. "But how are we going to know when that
German spy signals the submarine and fails to convey his full meaning,
Blake?"
"We'll have to watch him, of course. Catch him in the act, as it were.
The defective lamp will help."
"So it will!" exclaimed Joe. "Blake, I take back all I thought of you. I
imagined you were making a mistake to let that lamp go out of your
possession; but now I see your game. It's a good one! But we've got to
be on the watch for this spy!"
"Oh, yes," agreed his chum.
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