“We should not do that until we can prove our story fully,” answered Sydney. “The captain might believe our accusations were true, but he could hardly act officially upon them.”

“It seems hard that such a scoundrel should wear an officer’s uniform,” protested the lad, “but I dare say you are right, Syd. We must seek for more convincing evidence.”

“What is your plan for to-night?” asked Sydney, as he took his revolvers out of their case and examined them critically.

“I have decided to keep a watch during the day, and if no vessel large enough to carry the boxes leaves port before dark, then to lie in wait in the ‘Vidette’ at the entrance of the harbor, and overhaul any suspicious craft that comes out of port.”

“Excellent,” agreed Sydney. “I am quite confident that Juarez will use a steamer; the breeze is too light, and as he must go nearly twenty miles by water to reach the insurgent lines, a sailing vessel would be out of the question. The note you saw thrown by the native boatman undoubtedly set a rendezvous for this evening. They will want to get the arms to the insurgents as soon as possible.”

Phil and Sydney made their preparations quietly. O’Neil was called and told something of what was going forward and ordered to keep his launch, the “Vidette,” in readiness.

All afternoon the lads spent on deck, casting anxious glances toward the dock where the minister’s launch was tied. There were a number of other launches moving about the harbor, but there was only one other large enough to carry the boxes.

About 7 P. M., the sun having set a half hour before, it was dark enough to start, and they appeared on deck.

“We have the captain’s permission to use the ‘Vidette,’” Phil reported to the officer of the deck. “I have reported to Mr. Penfield. Will you have her called away, sir?”

Then Phil peered through the darkness, the deck lights not being lighted as yet, and saw Lazar was the officer of the deck.