"Let us move on to the next window," said his brother. "Now is our best chance to size up the place—while most of the crowd are getting their supper."

As silently as before, they moved along in the darkness to where the light was streaming from the third window, not far from a corner of the ranch. Then each of the boys raised himself up with the slowness of an Indian on a trail.

Nobody seemed to be in the room, and, growing bolder, they drew nearer, until they could get a good view of the interior. They saw a table and several chairs, and also a desk and a safe. On the table was the lamp, and beside this, several piles of new, crisp bank bills.

"My gracious! Look at the money!" gasped Sam. "Why, there must be thousands and thousands of dollars there, Dick!"

"You are right."

"Sack Todd must be very wealthy."

"Unless—" and the eldest Rover paused.

"Unless what?"

"Unless those bank bills are counterfeit."

CHAPTER XVIII