Wondering and still perplexed, they ascended to the upper floor.

CHAPTER XVII.
A HIDDEN PIT.

Factor Scott decided that he would not prefer charges against the two Indians until he had definitely discovered what they had stolen. But in the days that passed, to his increasing astonishment, he could find nothing missing. What had the two prowlers taken from the cellar? It was a question that was threshed over, pro and con, for many an hour. In Sandy’s opinion, the solution to the mystery was to be found in only one way: namely, that Factor Scott had taken a hurried inventory a few days previous to the robbery and that there were more cases of liquor in the cellar than he had on record.

“He can say what he likes,” insisted Sandy. “There is the real solution. Those two Indians wanted fire-water and they broke in and got it.”

However, when Dick reported this theory to the factor, Mr. Scott had a good laugh over it.

“It wasn’t liquor,” he smiled, “you can tell Sandy for me. Even if I did make a mistake in my reckoning, I insist that it wasn’t bottles of rum that the Indians stole.”

“How do you know that?” asked Dick.

“It’s all very simple. If the Indians had stolen liquor they would have proceeded to get gloriously drunk. They wouldn’t have been able to resist the temptation. I know Indian nature well enough for that.”

“You’re quite right.” laughed Dick. “We’ll eliminate such an hypothesis. Now what I’d like to know is, what did they steal out of that cellar?”

The factor bit his lips. “I confess that I don’t know. Every day for the past three weeks I’ve gone to the cellar and, if there was anything there beside those empty packing boxes, the cases of liquor and wrapping paper, I’d have seen it. If it wasn’t for the evidence of the broken lock on the trading room door, I’d be very much inclined to believe that you have been the victim of a nightmare or an hallucination.”