submarine, that's all we ask."

"There are probably a dozen or so about here some place," returned Frank.
"Keep your eyes peeled and don't wait an order to fire if you see anything
that looks like one."

"Right, sir."

The officer turned to his men with a sharp command.

Frank continued his inspection of the ship as the Brigadier dashed toward
the vessel in distress, probably ten miles ahead.

Every man aboard the Brigadier was on the alert as the destroyer plowed
swiftly through the water. It was possible, of course, that the submarines
had made off after attacking the vessel, but there was always the
possibility that some were still lurking in the neighborhood.

"Can't be too careful," Jack told himself.

Fifteen minutes later, the lookout was able to make out more clearly the
ship ahead of them.

"Steamer Hazelton," he called to the quartermaster, who reported to Jack.

"Same vessel that sent the wireless, Frank," was Jack's comment. "We will
have to look sharp. It's more than an even bet that some of those undersea
sharks are watching for a ship to come to the rescue so they can have a
shot at her also."