A sharp hail rang out from the nearest gun-boat, the flag-ship.

"What vessel is that, and whither bound?"

Mr. Howland tore at his collar and stuttered in purple fury.

"Impudence! Impertinence! Lunacy! Here, Captain, tell them they know very well what ship this is—and—and—wait!" as Dan raised the megaphone to his lips. "Don't waste time talking to the villains. Tell them—tell them to go—well, you know what to tell them."

And Dan demonstrated that he did—so vigorously, so eloquently that the answer came in the shape of a blank shot across the Tampico's bows.

Dan looked gravely at the owner.

"The thing is pretty plain, Mr. Howland," he said; "the navy has evidently joined the insurrection. Why they have not bombarded the city I don't know; but you can be sure they are going to. We will have to stop," and without waiting for a reply he jerked the signal indicator, to cease headway. Mr. Howland was at no pains to conceal his chagrin.

"A mighty bad stumbling-block; a mighty bad stumbling-block if the navy has revolted, Captain Merrithew. If this Government falls, it means a great deal to me; means the loss of considerable money—and prestige. I must look to you to land those guns, Captain."

Dan did not reply, but gazed earnestly toward the city as though meditating a dash. But that was out of the question, considering those aboard. As the chug of the engines died out and the cough of the exhaust hit the glooming air and the clumsy black hull slid to a gurgling standstill, a gig was lowered from the El Toro, the flag-ship, and the officer, Admiral Congosto, was soon stumbling up the gangway of the freighter. Mr. Howland was inclined to have him thrown overboard at once, but the better counsel of the Captain prevailed.

"Very well," growled the ruffled owner, "have your fling."