He made a new discovery as he came to the other side of the mound. A double track in the snow led to and from a clump of bushes, and these latter were brushed aside and broken as if recently passed over.

Will thrilled at his discovery. The cave had two entrances, and the bear, too keen-witted to step into the trap, was using this one as a means of entrance and exit.

“I believe I’ll have a look into the place,” murmured Will.

He parted the brushes and found a large aperture looking down into complete darkness.

Will’s curiosity overcame his prudence, and there being no indication of the presence of the bear, he withdrew his head, and, cutting a large, resinous knot from a tree near at hand, proceeded to ignite it with a match.

When it flared up sufficiently, he again approached the rear opening to the cave, brushed aside the bushes, and extended it far into the darkness.

Its radiance showed the clay floor of the cave a few feet below. Straining his eyes to pierce the darkness, Will met with an unexpected accident.

The bush he was holding to gave way, and he fell forward precipitately. The torch was hurled downwards, while he himself plunged head foremost into the cave.

Bruised and startled, he scrambled to his feet.

At that moment a terrific roar echoed through the darkness and gloom of the cave.