"Well--some folks do talk of terrible groans they've heard if so be they've rowed past the island by night, and 'tis said the place is haunted by the spirit of the old gentleman as used to live there."

"He hasn't disturbed our rest, I assure you. I dare say he's been soothed by my banjo; I usually tune up a little before I go to bed. You play the banjo yourself, I hear; you know how grateful and comforting it is--sweet and low, not like the squeaking scrape of the violin, or the ear-splitting blast of the cornet. I think you're a man of taste, Mr. Blevins, and as a fellow-musician I congratulate you.... That's sixty yards? Now, Armstrong, stick out your chest, and Mr. Blevins and I between us will rig up your bandolier."

When they had left the shop, Pratt asked: "I say, what's he mean by those old groans?"

"I heard a sort of moaning the night I first saw the cottage," Armstrong replied; "but I put it down to the wind, of course."

"There's been no wind to speak of since we settled on the island. I'd like to hear those sounds. Strikes me they're an acoustical phenomenon. Sure it wasn't an owl?"

"Nothing like it; the note was deeper and more prolonged."

"Well, if it's the wind in the eaves the sound will be heard by day as well as by night, and I'll trot over to the cottage the first breezy morning and listen."

Warrender had nothing to report when they regained the camp. He thought well of Pratt's idea of a trap, and they spent the greater part of the day in cutting a number of stout pegs from saplings in the woods. These they drove into the ground, at intervals of a few feet, in a long semi-circle at the edge of the clearing, and stretched the clothes-line upon them about six inches from the ground. One or other of them kept a careful look-out while the work was in progress, and nothing was seen of Rush or any other human being. Before dusk the task was completed, and they had provided themselves in addition with stout cudgels.

It was Pratt's turn to take first watch that night. On the previous night each had sat out in the open, but it occurred to Pratt that a better place would be just within the tent. Accordingly, when the others encased themselves in their sleeping-bags, he posted himself on his chair at the entrance, shaded from the moonlight by the projecting flap.

More than two hours had passed; he was growing sleepy, frequently glancing at his watch to see when it would be time to awaken Warrender. Just before half-past eleven he heard a slight sound from the thicket on his right. Seizing his cudgel, he looked in the direction of the sound. The edge of the clearing on that side was deep in shadow. He stood up; it might be a false alarm; he would not awaken his companions.