King Coal by Upton Sinclair

Would they wait until morning, or would they come soon? He was inclined to the latter guess, so he was only slightly startled when, an hour or two later, he heard the knob of the cabin-door turned. A moment later came a crash and the door was burst open, with the shoulder of a heavy man behind it.

The room was in confusion in a second. Men sprang to their feet, crying out; others sat up bewildered, still half asleep. The room was bright from an electric torch in the hands of one of the invaders. "There's the fellow! " cried a voice, which Hal instantly recognised as belonging to Jeff Cotton, the camp-marshal. "Stick 'em up, there! You, Joe Smith! " Hal did not wait to see the glint of the marshal's revolver.