Way of the Lawless by Max Brand

The thought of Jud now took him up the back trail of Andrew Lanning. He leaned far over with the lantern, studying with intense interest every place where the wounds of the injured man might have left telltale stains on the rocks or the grass. When he had apparently satisfied himself of this, he turned and ran at full speed back to the house and went up the ladder to Andrew. There he took the boots -- they were terribly stained, he saw -- and drew them on.

The loose boots and the unaccustomed weights tangled his feet sadly, as he went on down the ladder, but he said not a word to his grandfather, who was far too dignified to make a comment on the borrowed footgear.