and amusement, for Hugh refused to believe in spook manifestations. At the same time he admitted that his heart was fluttering at a much more rapid gait than customary when he started toward one of the doors of the room, using the little electric torch to light his way.

If any one could have read the thoughts that were surging through the boy's excited mind, they would perhaps have been found to range about in this manner:

"Ghosts, eh? Well, I've always said there never existed any, and perhaps I'll have a chance right now to prove it, one way or the other. A queer kind of a hobgoblin that must be to keep whimpering like a baby, and then fluttering to beat the band. But what in the wide world can it all mean? That's what I reckon on finding out, given half a chance."

He had reached the door by that time. Billy had seen to it that the bolt was shot into its socket before he lay down. More than that, he had even gone to the trouble to fill the keyhole full of crumpled paper, remembering that jibe on the part of one of his chums to the effect that spirits can "ooze like smoke" through even such small apertures.

Hugh had been wise enough to pick up a handy club before starting forth upon his mission of investigation. He did not anticipate finding a chance to make use of it, but when a man insures his house against fire he really does not expect it to be burned down. Hugh wanted to be on the safe side, that was all.

Just at that point the boy, was influenced to turn around and cast the light of his torch upon the forms of his four comrades swathed in their coverings. Not one of them moved, even in the slightest degree, so that, if Hugh was half contemplating inviting company, he found no encouragement there.

Gritting his teeth, the boy calmly drew back the bolt, softly opened the massive door, slipped boldly through the aperture, and then as deftly closed the door behind him.

Standing there in the great hall he listened intently, meanwhile keeping his light turning this way and that in order to see if anything moved. Perhaps, in the days when Judge Randall lived in his romantic castle, this massive hall had been decorated after the usual custom of feudal times. Hugh could easily imagine shining suits of armor standing grimly in, the corners, like sentries on guard. He had detected marks on the walls betraying the fact that at some time they had borne all manner of relics of long-past age of chivalry, so that the illusion might be complete. But now they stood there bare and cold, and a chilly draught came down from the empty regions above that made the boy shiver.

Then he heard the strange sounds again. They were clearer now than before.

"One thing certain," muttered Hugh, between his set teeth, "whatever makes that noise it comes from up above. And the thing for me to do is to climb the stairs; so here goes."

If he felt any hesitation he did not show it as he made his way to the foot of the broad stairway and commenced mounting, step after step. Always the sounds seemed to grow a little clearer, and this fact told Hugh his scout instinct must be truly leading him directly toward the place from which they issued.

He had reached the second floor, and was pushing steadily onward. Several times he stopped short to listen, nor would he make a move at such intervals unless he had received his clue again. Not once did he manifest any weakness in the line of shrugging his shoulders, and saying that it was none of his business if the night air played pranks by forcing its way through some hole in the wall, with a whine and a gurgle.

When Hugh once set himself a task it was his nature to carry the thing through to the end. He would despise himself if he allowed any weak fear to triumph over his common-sense.

A brief time later he found himself standing near where he knew one of the several turrets stood. He remembered now that while they had investigated more or less of the big building, they were forced to skip several portions, leaving them for the next morning's survey; and doubtless this turret chamber must have been in the list of those unexplored places.

"Whatever it may be," Hugh was telling himself, "the thing making all that noise is in there! I'll listen once more, and then take a peek."

When he again heard the gurgling, the fluttering, and the strange whimpering Hugh had his hand on the door knob. He quickly threw the barrier open and flashed his light into the chamber.

Instantly there was a scurry of wings. Queer glowing balls of yellow connected with obscure, shadowy figures stared at him. The wings winnowed the air, and again he caught that peculiar whinny.

Hugh laughed aloud.

"Why, it's only a family of owls after all," he said, in great relief, "that's taken up quarters here in this turret, where they can go in and out as they please. Yes, and those things that flapped away must have been some ugly bats in the bargain, that haven't gone into winter quarters yet. Well, this is a pretty good sell, I must say. I'm glad I made up my mind to find out what that noise was. Now I guess I can go to sleep again. Ghosts! Well, like as not every ghost that ever was heard of would turn out to be as simple a thing as this, if only some one had the nerve to investigate."

He closed the door to the turret chamber. Let the owls and bats have their quarters if they wanted to. There was plenty of room in that great castle for himself and chums to sleep without ousting, the happy family from their roost.

So Hugh started down the stairs feeling much lighter of heart than when he had so recently climbed upward. The tension and strain had been removed from his boyish heart, and he was ready to confess that things had seemed pretty ticklish at one time, and had required all his resolution to push ahead.

He found the right door, and softly opening it made his way into the big room in which the others were sleeping. While fastening the door again Hugh could hear the regular breathing of Billy, and possibly of the others.

As he incidentally flashed his light on them before turning in he was surprised to see Alec Sands sitting bolt upright and watching him curiously. Hugh held up a warning finger. He did not want Alec to talk out loud and needlessly awaken all of the other fellows. At the same time he know full well he must give some sort of explanation for his strange absence.

"I heard it, too, Hugh," whispered Alec, with a half grin. "Woke up and found you gone when I put out my hand to feel your blanket. Then I caught those awful ghoulish sounds somewhere. Wanted to creep after you, but say, I own up I didn't have the nerve to try it. So here I've been sitting, hugging my knees, and listening till I'm shivering as if I had the ague. Now tell me what it is, Hugh, for I just know you've found out."

Hugh chuckled and said:

"Oh! just a family that has squatted down on these premises, and hates to be evicted in case your rich aunt, or anybody else, buys the same!"

"Come off, Hugh; don't try to muddle me all up like that, when I'm dying to know what could make such awful sounds. What kind of a family is it?"

"Owls, with a few big bats thrown in for good measure," explained Hugh. "They've taken up their quarters in one of the turret chambers where slits in the walls allow them to go and come as they please."

"You woke up and heard that gibberish, didn't you, Hugh? And you made up your mind on the spot that you just had to find out what it meant? It's like you to do such a thing! But, Hugh, why didn't you let me in on it? I'd have been glad to keep