Little Emma's cheeks were almost translucent, and she twitched in her sleep. Joe swallowed hard, and again had a strange feeling that angels must look this way. Joe forced cheer into his voice.

"We'll be in Laramie soon. Don't you worry."

Snow was falling faster; the tracks they'd made coming up the rise were half filled and there was no indication that the storm would lessen. Joe took the reins from Tad and the weary mules plodded on. Joe tried to peer down the Trail and could see only a few feet, but that was not because of heavy snow. Night was coming. Joe stopped the mules again.

"Reckon you could keep them moving?" he asked Tad.

"I reckon. What are you goin' to do, Pa?"

"Make darn' sure we stay on the Trail."

Joe handed the reins to Tad and leaped from the wagon into the snow-filled twilight. Mules had an instinct for the trail. But men had a keener one and to get lost now might be fatal. Joe walked to the head of the team, and the mules flicked their long ears forward while they sniffed him anxiously. They, too, knew that it was past the time to stop. Joe turned his back to the team and called to Tad,

"All right."

He walked fast enough to keep ahead of the laboring team, and his heart caught in his throat because he had to set a very slow pace. The mules were straining hard to do work that under ordinary circumstances would not have been excessive. The night was wholly black now.

Joe stopped suddenly, aware that they had come to another river only because he heard the soft purling of water. Two more steps and he would have walked into it. His heart pounded, and he trembled. John Gaystell had spoken of the Laramie River, and had said that it could be forded. Suppose there was another river that could not be forded, one Gaystell hadn't mentioned? Joe hesitated, then got his rifle.