The other Buck was probably with his friend Tom.
At last Whitey's curiosity could hold him back no longer, and he crept forward to the front line of men, keeping well to one side.

They had ceased firing, the house was dark.

And the sheepmen there had ceased firing too.

Their only marks had been the flashes of the cattlemen's guns, and those showed no longer.
All the men were hushed, as though in expectancy.

Whitey peered into the darkness, as they were doing.