“What do you propose?” asked Rogers.

Ned’s answer was prompt. “Somebody started something out here a few minutes ago. I’m wondering how many of us are game to finish out the night right here and see what else may happen.”

“Count on me for one,” was Dick’s quick reply.

Rogers and Beals, after an exchange of questioning glances, declared their willingness to remain.

“Oh, all right. I’ll stick around with you,” croaked Dave Wilbur, “that is, I will if I can stay inside, but when it comes to another night of camping on the cold, cold ground, there’s nothing doing.”

“That’s all right, Dave,” agreed Ned. “We’ll make you inside sentry,” and without further loss of time, Wilbur set about arranging a row of chairs upon which he stretched his lanky frame.

“Now, fellows,” continued Ned, “this is what I propose: Red and Fatty will hide in that clump of oaks beyond the driveway and watch the front and west end of the house. Dick and I will guard the rear side and the east end. If either party sees or hears anything suspicious, follow it up and yell a plenty if help is needed. We’ll try to capture this rubber-soled ghost, if he shows himself again.”

CHAPTER XIX
A STARTLING DISCLOSURE

Ned Blake and Dick Somers had secreted themselves among the bushes in such position that they could see any movement that might take place at the rear of the house or along its eastern end. The moon was now well above the woods and, although in its last quarter, it still gave sufficient light to make near-by objects dimly visible. From their place of concealment the boys could look out upon the shadowy surface of the lake, and many an anxious glance was turned that way, prompted by the remembrance of the craft whose mysterious movements had so puzzled them a few nights before. For the most part, however, their attention was fixed upon the great house, which loomed black and sinister, save where the feeble moonlight silvered the slate roof and touched the gleaming white range-mark on the chimney. Oppressed by the ominous silence, the boys exchanged but few whispered words and moved only when necessary to relieve cramped muscles. An hour passed, and then Ned grasped his companion’s arm and pointed to a dark object that had made its sudden appearance at the end of the house.

“What is it! Where did it come from!” Dick’s whisper was a gasp of excitement.