"Yes; I'm on until midnight. Then Williamson stands watch until three-thirty in the morning. After that Eph comes up and takes the trick until it's time to call us all."

"When do I come on watch?" asked Jack.

"I never heard the captain of a craft had to stand watch in port," laughed Hal Hastings "Besides, old fellow, we couldn't be sure you'd be aboard to-night. So the watches are all arranged. Anyway, you'd better turn in and get a full night's sleep, for you've more on your mind than the rest of us."

"Then tell Williamson, and have him pass the word on to Eph, that watch ought to be very strictly kept," answered the young captain.

A few minutes Benson remained on deck, chatting with his chum. When he at last went below the submarine captain lost little time getting into his berth.

When Machinist Williamson came on deck at midnight a light wind was blowing, but the air was not really chilly. In his heavy reefer the machinist felt wholly comfortable after he had lighted his pipe and started his slow walk back and forth along the deck.

There did not appear to be overmuch sense in keeping this deck watch. Only a short distance away lay the United States gunboat "Waverly," with her alert marine guard. Though there was no moon, the starlight was bright enough to enable a marine on the gunboat to see anything that might skim over the water toward the "Benson."

Yet Williamson was on watch, under instructions, and he was a faithful fellow who meant to do his full duty.

"Seems kinder tough, of course, to be so long out of one's bunk in the middle of the night," the machinist admitted to himself.

Yet, had his vision been keen enough to know what was happening on shore, almost directly opposite the "Benson," Williamson would have been tenfold more alert.