From simple causes great events do spring.  The skipper sprang four yards, and let off a screech which was the subject of much comment on the barque which had just passed.  When Bob, who came shuffling up at the double, reached him he was leaning against the side, incapable of speech, and shaking all over.

“Anything wrong, sir?” inquired the seaman anxiously, as he ran to the wheel.

The skipper pulled himself together a bit, and got closer to his companion.

“Believe me or not, Bob,” he said at length, in trembling accents, “just as you please, but the ghost of that—­cat, I mean the ghost of that poor affectionate animal which I drowned, and which I wish I hadn’t, came and rubbed itself up against my leg.”

“Which leg?” inquired Bob, who was ever careful about details.

“What the blazes does it matter which leg?” demanded the skipper, whose nerves were in a terrible state.  “Ah, look—­look there!”

The seaman followed his outstretched finger, and his heart failed him as he saw the cat, with its back arched, gingerly picking its way along the side of the vessel.

“I can’t see nothing,” he said doggedly.

“I don’t suppose you can, Bob,” said the skipper in a melancholy voice, as the cat vanished in the bows; “it’s evidently only meant for me to see.  What it means I don’t know.  I’m going down to turn in.  I ain’t fit for duty.  You don’t mind being left alone till the mate comes up, do you?”

“I ain’t afraid,” said Bob.

His superior officer disappeared below, and, shaking the sleepy mate, who protested strongly against the proceedings, narrated in trembling tones his horrible experiences.

“If I were you “—­said the mate.

“Yes?” said the skipper, waiting a bit.  Then he shook him again, roughly.

“What were you going to say?” he inquired.

“Say?” said the mate, rubbing his eyes.  “Nothing.”

“About the cat?” suggested the skipper.

“Cat?” said the mate, nestling lovingly down in the blankets again.  “Wha’ ca’—­goo’ ni’”—­

Then the skipper drew the blankets from the mate’s sleepy clutches, and, rolling him backwards and forwards in the bunk, patiently explained to him that he was very unwell, that he was going to have a drop of whiskey neat, and turn in, and that he, the mate, was to take the watch.  From this moment the joke lost much of its savour for the mate.

“You can have a nip too, Dick,” said the skipper, proffering him the whiskey, as the other sullenly dressed himself.

“It’s all rot,” said the mate, tossing the spirits down his throat, “and it’s no use either; you can’t run away from a ghost; it’s just as likely to be in your bed as anywhere else.  Good-night.”

He left the skipper pondering over his last words, and dubiously eyeing the piece of furniture in question.  Nor did he retire until he had subjected it to an analysis of the most searching description, and then, leaving the lamp burning, he sprang hastily in, and forgot his troubles in sleep.