“What kind of a clue was you lookin’ for?” asked Long Sam. “What’s a clue, anyway?”

“A clue,” said P. Gubb, “is almost anything connected with the late lamented, but generally something that nobody but a deteckative would think had anything to do with anything whatsoever. Not infrequently often it is a button.”

“Well, I’ve got no button except them that is sewed onto me,” said Long Sam, “but if this here sack-needle will do any good—”

He brought from his pocket the point of a heavy sack-needle and laid it in Philo Gubb’s palm. Mr. Gubb looked at it carefully. In the eye of the needle still remained a few inches of twine.

“I cut that off’n the burlap he was sewed up in,” volunteered Long Sam, “I thought I’d keep it as a sort of nice little souvenir. I’d like it back again when you don’t need it for a clue no more.”

“Certainly sure,” agreed Mr. Gubb, and he examined the needle carefully.

There are two kinds of sack-needles in general use. In both, the point of the needle is curved to facilitate pushing it into and out of a closely filled sack; in both, the curved portion is somewhat flattened so that the thumb and finger may secure a firm grasp to pull the needle through; but in one style the eye is at the end of the shaft while in the other it is near the point. This needle was like neither; the eye was midway of the shaft; the needle was pointed at each end and the curved portions were not flattened. Mr. Gubb noticed another thing—the twine was not the ordinary loosely twisted hemp twine, but a hard, smooth cotton cord, like carpet warp.

“Thank you,” said Mr. Gubb, “and now I will go elsewhere to investigate to a further extent, and it is not necessarily imperative that everybody should accompany along with me if they don’t want to.”

But everybody did want to, it seemed. Long Sam and his audience joined Mr. Gubb’s gallery and, with a dozen or so newcomers, they followed Mr. Gubb at a decent distance as he walked toward the plant of the Brownson Packing Company, which stood on the riverbank some two blocks away.

It was here Henry Smitz had worked. Six or eight buildings of various sizes, the largest of which stood immediately on the river’s edge, together with the “yards” or pens, all enclosed by a high board fence, constituted the plant of the packing company, and as Mr. Gubb appeared at the gate the watchman there stood aside to let him enter.