Will moved cautiously around the angle of the weigh-house just in time to see a figure leaving the side of the building and moving toward the breaker. There was a little side door in the breaker not far from the weigh-house, and it was toward this that the prowler was making his way.
Half way to the little house the fellow stumbled over some obstruction in his path and fell sprawling to the ground. He arose with an impatient oath and moved on again, but not before the watcher had recognized both the figure and the voice. Will, turned back to where George stood. "That's Ventner," he said.
"Are you sure?"
"Dead sure!" There was a short silence. "What can we do now?"
"I don't know of anything we can do, unless it is to watch the rascal and see where he goes," answered the other. "The chances are that he's trying to get into the mine!"
"That shows the fellow is a crook!" Will contended. "He has full permission to enter the mine at any time he sees fit."
"Of course, he's a crook!" agreed George. "What would he be sneaking around here in the night for, if he wasn't engaged in some underhand game? You just wait until we get into the mine," the boy continued, "and we'll give him a ghost scare that'll hold him for a while."
As Ventner approached the little side door leading into the breaker, a light flashed in the window of the room which the boys had occupied, and directly Canfield's voice was heard asking:
"Who's there?"
"Now if he's on the square, he'll answer!" whispered Will.