"Looks like a periscope," reported the quartermaster.
Frank snapped his binoculars on a bobbing black spar.
"Buoy and fishnet," he decided after a quick scrutiny.
Frank kept the late watch that night. At 4 a.m. he turned in. At five he climbed hastily from his bunk at the jingle of general alarm, and reached the bridge on the run in time to see the exchange of recognition signals with a British man-o'-war, which vessel had run into a submarine while the latter was on the surface in a fog. The warship had just rammed the U-boat.
"Can we help you?" Frank called across the water.
"Thanks. Drop a few depth charges," was the reply.
This was done, but nothing came of it Frank returned to his bunk.
"Pretty slow life, this, if you ask me," he told himself.
He went back to sleep.