As I stood at the wheel about midnight, I saw the Captain approach in the darkness carrying the cabin-boy by the hind leg. The lad was a bright little fellow, whose merry disposition had already endeared him to me, and I watched with some interest to see what the Captain would do to him. Arrived at the stern of the vessel, Captain Bilge looked cautiously around a moment and then dropped the boy into the sea. For a brief instant the lad’s head appeared in the phosphorus of the waves. The Captain threw a boot at him, sighed deeply, and went below.

Here then was the key to the mystery! The Captain was throwing the crew overboard. Next morning we met at breakfast as usual.

“Poor little Williams has fallen overboard,” said the Captain, seizing a strip of ship’s bacon and tearing at it with his teeth as if he almost meant to eat it.

“Captain,” I said, greatly excited, stabbing at a ship’s loaf in my agitation with such ferocity as almost to drive my knife into it— “You threw that boy overboard!”

“I did,” said Captain Bilge, grown suddenly quiet, “I threw them all over and intend to throw the rest. Listen, Blowhard, you are young, ambitious, and trustworthy. I will confide in you.”

Perfectly calm now, he stepped to a locker, rummaged in it a moment, and drew out a faded piece of yellow parchment, which he spread on the table. It was a map or chart. In the centre of it was a circle. In the middle of the circle was a small dot and a letter T, while at one side of the map was a letter N, and against it on the other side a letter S.

“What is this?” I asked.

“Can you not guess?” queried Captain Bilge. “It is a desert island.”

“Ah!” I rejoined with a sudden flash of intuition, “and N is for North and S is for South.”

“Blowhard,” said the Captain, striking the table with such force as to cause a loaf of ship’s bread to bounce up and down three or four times, “you’ve struck it. That part of it had not yet occurred to me.”