me to search for the thief," rejoined the man from the State Department. "But that would now be worse than a waste of time. Gibraltar, quaint Moorish city that it is, is so full of holes in the wall that it would be impossible to find the thief, for he will not venture out again to-night. The best thing I can do will be to go straight to the American admiral, and you gentlemen, I imagine, can take me there."
"A launch will put off from the mole for the flagship at ten o'clock," Dave informed him. "We may as well go down to the mole and wait."
Twice, on the way, after leaving the more crowded parts of the city behind, the three were challenged by English sentries invisible in the darkness.
"Who goes there?" came the sentry's hail in each instance.
"Officers from the American flagship," Darrin answered for the party.
"Pass on, gentlemen," came the response out of the darkness.
At all times strict watch over all comers outside the British army service is kept at Gibralt