But Mac Strann and Haw-Haw Langley knew the sound well enough.
When they mounted their saddles they could look over the top of the little hill and observe everything easily without being seen; for the hill-top commanded a range of the corrals and a view of the fronts of the barns and sheds which opened upon the fenced enclosures.

The largest and longest of these buildings was now plainly visible, for a long arm of fire reached above the roof on one side of the low shed and by this growing light the other barns, the glimmering-eyed horses and cattle of the corrals, the trees about the house, the house itself, were in turn visible, though vaguely, and at times, as the flame lapsed, all were lost in a flood of swift darkness.

Once more that unhuman shriek echoed from hill to hill and from building to building.

It was Satan in his box stall.

The flames were eating through the partition, and the stallion was mad with fear.
Lights flashed, here and there, in the big ranch house; and from the bunk-house on the farther side of the corrals rose a volley of curses and yells of dismay.