“And you shot him!” gasped Sandy.

“No, I struck him over the head when we tumbled to the floor. Previously, I had wounded Frazer in the hand when he tried to reach for his gun. During my struggle with Henri, Frazer seized the two pokes and started to rush by me. I grabbed for him and nearly upset him. He dropped one of the pokes, but in spite of all I could do, he escaped with the other.”

“But who were you shooting at just before we came?”

“Frazer and the two prospectors. They were returning to get the other poke. Did you succeed in saving most of the fur?”

“Some of it was badly scorched and ruined,” the factor informed him. “However, the fire is out now. I have placed Langley, the blacksmith, and two half-breeds in charge. The fire is of very mysterious origin. It broke out among the bales of fur in the back of the building. I believe now it was the work of an incendiary. No doubt, Frazer started it. When Sandy’s uncle drove him away from the post, he probably took one of the keys of the warehouse with him. Today when no one was looking, either he or one of his accomplices boldly entered, started the fire, then came out and locked the door.”

“There’s no question but what Frazer set the fire,” said Dick grimly. “I suspected it from the first. I followed you and Sandy almost to the warehouse, when it suddenly occurred to me that we had left the door to the trading room open and the place unprotected.” He paused and looked earnestly up into the factor’s face. “Can’t you see,” he went on, “that it was all of a prearranged plan? Unsuccessful in his efforts to get into your office, Frazer hit upon the very clever idea of firing the warehouse, knowing that all of us would rush out to the scene of the fire, leaving this place wholly unguarded.”

Mr. Scott thumped his two hands together and looked at Dick admiringly.

“You’re right. If it hadn’t been for you, they’d have succeeded.”

“You mean, they almost succeeded in spite of me. Don’t forget they got one of those pokes.”

The factor moved forward. “Show me the place where the gold was hid. You spoke of a secret compartment. I want to see it.”