"That's our gunboat out there, I think," went on Mr. Farnum, pointing to
where a white masthead light and a red port light were visible, about a
mile away.

"Dunhaven must be on the map, all right, if a strange navigating officer
knows how to come so straight to the place," laughed Jack Benson.

"Oh, you trust a United States naval officer to find any place he has
sailing orders for," returned Jacob Farnum. "I wonder if he'll attempt
to come into this harbor!"

"There's safe anchorage, if he wants to do so," replied Captain Jack.

While Somers was busy putting the foreman and the machinists ashore,
Mr. Farnum, Jack and Hal remained on the platform deck, watching the
approach of the naval vessel, which was now plainly making for Dunhaven.

Suddenly, a broad beam of glaring white light shot over the water,
resting across the deck of the "Farnum."

"I guess that fellow knows what he wants to know, now," muttered Benson,
blinking alter the strong glare had passed.

"There, he has picked up the 'Pollard,' too," announced Hastings. "Now,
that commander must feel sure he has sighted the right place."

"There go the signal lights," cried Captain Jack, suddenly. "Hal,
hustle below and turn on the electric current for the signaling
apparatus."