Dunvegan made a quick decision and gave a quicker order.

"Bring lights," was his command. "Let half your number hold the blockhouse and half occupy the store. It will take an army of Nor'westers to oust us now."

Immediately the chief trader's directions were carried out. The men assigned themselves promptly in equal bodies to both buildings.

There remained the trading-room and the factor's quarters to search. Dunvegan concluded that there was no separate house for the factor of the post, because a stairway led up through the store ceiling. He surmised that the residential apartments of the one in command of Brondel lay above. Gently he opened the door in the left-hand wall of the store and saw a long, gloomy passageway.

"No light," Bruce commented. "Nothing there either, it seems!"

He closed the door again and set foot on the stairs.

"Guard those entrances well," was his adjuration. "Don't stir unless you get a signal from me. I'm going up to awaken the lord of Fort Brondel, whoever he may be, and let him know that he is a prisoner of the Hudson's Bay Company."

Slowly Dunvegan ascended the stairway and reached the upper floor. He still had the candle in his hand, its pale flame revealing a sort of living-room which held a table, a stove, chairs, shelves of books, a lounge covered with fur robes, a large wooden cupboard, a pair of leather-padded stools, a writing-desk in the corner. The furnishings were plain, though comfortable; they seemed such as any hard-working factor might possess.

Treading softly, the chief trader crossed to the door at the other end and pushed on it. It remained fast, bolted inside. He put his ear to the wood. No sound!

Dunvegan stepped back a stride. Rising with a swift movement on the toes of the left foot, he planted his right sole flatly against the door with a straight, powerful body jolt. There came the crunching noise of metal tearing through hard wood, and the barrier swung back trembling on its hinges.