“Then, Jack, since we’ve decided that it’s a case of biting or being bitten, please get busy as quick as you can. I’m fairly wild to see what happens when that smoke is discovered. We must act as if we’re half frightened to death, even if we’re not supposed to know the nature of the cargo under our feet.”

Jack took another look around him. The island came in for a considerable share of his attention, for if there was to be a sudden exodus of captain and crew belonging to the powerboat, that was the only place to which they could go.

The afternoon was near its end and already the shades of approaching night had commenced to creep forth. He could see some slender masts outlined against the sky-line above one part of the land, and concluded there must be a small bay there, possibly a Greek village, and in which shelter from the storms that sweep the Mediterranean in the spring season of the year, these small fishing boats might be safe from damage.

“Listen!” cautioned Amos.

Both of them strained their ears to catch the distant grumble as of thunder that came over the water.

“It seems to come from the northeast, as near as I can make it out,” remarked Jack, presently.

“It must be the sound of the monster guns of a dreadnaught engaging some of the Turkish batteries or forts along the Dardanelles,” ventured the second lad.

“As like as not we’re listening to the sixteen-inch guns carried by the super-dreadnaught Queen Elizabeth,” admitted Jack. “I forget how many dozen miles they claim you can hear the sound, but it’s a long ways. Mark the location well, Amos.”

“That’s right,” added the other, with a wide smile, “because if later on we do the piloting of this craft we’ll want to know our course, so as to strike the line of guard-ships off the end of the Gallipoli Peninsula.”

They stood and listened as the strange complaining grumble came stealing again over the swelling sea. Perhaps, in that moment, both boys could see, in imagination, the great battleship wreathed in smoke after the discharge of a monster gun. Somehow the very thought thrilled them, for they had been anticipating just such a sight as this for some time now.