She gripped a revolver in her right hand.

With her left she reached for the latch.
"Don't open it!" gasped Adela.
But Dot paid no heed.

She lifted the latch and flung wide the door.

Her slim figure stood outlined against the lamp-light behind her.

Before her in a white glare of moonlight lay the vault-like entrance of the mine at the head of Barren Valley, and surging along the black, scarred side of the hill there came a yelling crowd of miners.