As Dave stood there, braced and exhilarated by the dash of wind and spray, he saw Gerstein suddenly rush up the cabin stairs.

"Hello, what's up with him, I wonder," thought Dave.

The remark was caused by a view of the face of the fellow as he passed a lantern set near the forecastle. Gerstein seemed frightfully agitated. Heedless of the slippery deck, he plunged along towards the stern. Once or twice a lurch threatened to bring him clear over the rail and into the sea.

Dave could not resist following him to learn the cause of his perturbation. A swing of the boat sent him clinging to the rail. Holding firmly, Dave, within twelve feet of the stern, saw Gerstein dash in among the men busy there and heard him shout out:

"Barlow--quick. Is he here?"

"Here I am," answered the owner of that name, looking around from his task of lashing down the cover of a water butt.

"My shirt--your shirt--the one you loaned me while I had mine washed," spoke Gerstein, in an anxious, gasping tone. "I gave it back to you this afternoon."

"Yes, you did," nodded Barlow.

"Where is it? Have you it on--say, quick!"

"Threw it under my bunk. In the forecastle. Bunk nearest the gangway. Hey, you've no sea legs, that's sure."