“But how’ll you get in?”

“Lightning-rod,” replied Bar. “It goes up close by one of the second story windows, and that has no fastening.”

“Is it strong enough?”

“Plenty. That’s the way the village boys got in. One of ’em left the mark of his heel deep in the grass at the bottom. Must have slipped and come down hard.”

“You’re a detective!” said Val.

It would have done the heart of Zeb Fuller good, if it had not revolutionized his views concerning “those two boarders,” if he had seen the practiced skill and agility with which Bar Vernon went up that lightning-rod.

“It’s equal to his billiards,” thought Val.

Yes, and it had been learned very much in the same way, during some of the queer episodes of his “old time.”

The window was opened and Bar disappeared, shutting it carefully and silently behind him, while Val hurried around to the basement door.

That, too, was speedily unbarred, and Val and his machine admitted.