The hands of both boys as they leveled their weapons were trembling, not with fear, but from sheer nervousness. The bear, meanwhile, had taken no notice and was still striving to reach the hidden treasures. Like the others, he had made the circuit of the Annex more than once, but now he was reared up again at the door, pulling at it with mighty tooth and claw. It seemed to both as they looked down the barrels of their rifles and chose the vulnerable spot that, monstrous and misshapen, he was constantly growing in size, so powerful was the effect of the moonlight and their imagination. But it was terrible fact to them.

They could see him with great distinctness, and so silent was the valley otherwise that they could hear the sound of his claws ripping across the bark. He was like some gigantic survival of another age. Dick waited until both his brother and himself grew steadier.

"Now don't miss, Albert," he said.

He counted "One, two, three," slowly, and at the "three!" the report of the two rifles came as one. They saw the great bear drop down from the tree, they heard an indescribable roar of pain and rage, and then they saw his huge bulk rushing down upon them. Dick fired three times and Albert twice, but the bear still came, and then Dick slammed the window shut and fastened it just as the full weight of the bear was hurled against the cabin.

Neither boy ever concealed from himself the fact that he was in a panic for a few moments. Their bullets seemed to have had no effect upon the huge grizzly, who was growling ferociously and tearing at the logs of the cabin. Glad they were that those logs were so stout and thick, and they stood there a little while in the darkness, their blood chilling at the sounds outside. Presently the roaring and tearing ceased and there was the sound of a fall. It was so dark in the cabin that the brothers could not see the faces of each other, but Dick whispered:

"Albert, I believe we've killed him, after all."

Albert said nothing and they waited a full ten minutes. No sound whatever came to their ears. Then Dick opened the window an inch or two and peeped out. The great bear lay upon his side quite still, and Dick uttered a cry of joy.

"We've killed him, Al! we've killed him!" he cried.

"Are you sure?" asked Albert.

"Quite sure. He does not stir in the slightest."