Snap found it necessary to sing or do something of that sort for other reasons as he led his horse about or rode him slowly on his solitary rounds. After such a day as he had had his eyes were more inclined to sleep than watch, and he envied the drowsy cattle as one by one they lay down with a contented 'ouf' upon the prairie. At last all the great shadows had sunk down to rest, and all you could see in the starlight was an indistinct dark mass upon the prairie. From time to time a shadow would appear a hundred yards or so outside the group, moving silently and slowly away. Quick as thought, when this occurred, another shadow (Snap's companion) would dash from his post and turn back the truant, feeding away from his companions, to the rest he had deserted. Snap soon learnt the game, and was getting very interested in it, when suddenly he noticed all the shadows move then rise to their feet, and, before even his galloping companion in the night-watch could get near them, they were dashing in wild, headlong flight into the darkness. 'Wake the boys and follow,' roared his companion, vanishing into the darkness after the flying beasts, and like a dream herd and herdsmen were gone, and Snap left alone. The 'boys' didn't need much waking. By the time Snap was at the camp they were up, and in an incredibly short time their horses were caught and saddled, and they were galloping after the panic-stricken beasts. 'What stampeded them, rot them?' asked Atkins as he tightened his girths. 'I don't know; they were still as stones one moment and gone the next,' answered Snap. 'Bar! I reckon,' growled another cowboy; 'there always are bar about this forsaken camp.' 'You stay here till we come back, and if we aren't back by to-morrow noon make tracks for Rosebud,' shouted Atkins as he galloped off, leaving Snap alone in camp without an idea where Rosebud was or how he was ever going to get there.