a
new idea seized him, and he hurried back to the ship, slackening his
pace only when he arrived at his own doorway. Here he paused a moment
and slowly ascended the staircase. When he reached the passage he
coughed slightly and paused again. Then he pushed open the door of the
darkened cabin and called softly:

"Rosey!"

"What is it, father?" said Rosey's voice from the little state-room on
the right--Rosey's own bower.

"Nothing!" said Mr. Nott, with an affectation of languid calmness; "I
only wanted to know if you was comfortable. It's an awful busy night in
town."

"Yes, father."

"I reckon thar's tons o' gold goin' to the States tomorrow."

"Yes, father."

"Pretty comfortable, eh?"

"Yes, father."

"Well, I'll browse round a spell, and turn in myself soon."

"Yes, father."

Mr. Nott took down a hanging lantern, lighted it, and passed out into
the gangway. Another lamp hung from the companion hatch to light the
tenants to the lower deck, whence he descended. This deck was divided
fore and aft by a partitioned passage,--the lofts or apartments being
lighted from the ports, and one or two by a door cut through the ship's
side communicating with an alley on either side. This was the case with
the loft occupied by Mr. Nott's strange lodger, which, besides a door
in the passage, had this independent communication with the alley. Nott
had never known him to make use of the latter door; on the contrary, it
was his regular habit to issue from his apartment at three o'clock
every afternoon, dressed as he has been described, stride deliberately
through the passage to the upper deck and thence into the street, where
his strange figure was a feature of the principal promenade for two or
three hours, returning as regularly at eight o'clock to the ship and
the seclusion of his loft. Mr. Nott paused before the door, under the
pretense of throwing the light before him into the shadows of the
forecastle: all was silent within. He was turning back when he was
impressed by the regular recurrence of a peculiar rustling sound which
he had at first referred to the rubbing of the wires of the swinging
lantern against his clothing. He set down the light and listened; the
sound was evidently on the other side of the partition; the sound of
some prolonged, rustling, scraping movement, with regular intervals.
Was it due to another of Mr. Nott's unprofitable tenants--the rats? No.
A bright idea flashed upon Mr. Nott's troubled m