Major Woodruff led the way back into the cabin. There he examined the chart, with a start of astonishment.
"The fellow was marking down all our mine positions," came savagely from between the Army officer's teeth.
Then he picked up the book.
"A nice little assortment of notes on matters of military interest along this coast," muttered the soldier. "Your long-legged fellow has been busy at other points than Craven's Bay."
Then, closing the book with a snap, Major Woodruff looked keenly at the submarine boy as he remarked:
"Mr. Benson, I think our present submarine tests can be well suspended. We have a much more important task ahead of us—to catch this impudent thief of military secrets! And, in this undertaking, Benson, you can be of the greatest sort of help!"
CHAPTER V
SIGHTING THE ENEMY
"You can count on me, sir," declared Captain Jack Benson, eagerly.
"I can count on every one of you submarine boys, can't I?" asked Major
Woodruff, thoughtfully.