Both held their rifles ready to fire as they rushed the rear ledges of the jagged crag. From the upper side the slopes around were all open to view. Lennon came to a panting halt and stared about in frank surprise. He had fully expected to see the limp form of a dead Apache lying on the rocks.

The girl sprang past him into a niche of the crag and bent to pick up a cartridge shell.

"A thirty-two," she said. "Same calibre as my rifle.... And look at this track—Apache-made moccasin. Easy to tell the print from that of a Pima or Moqui."

To Lennon the track was only a small narrow blur.

"I was right," added the girl. "No trace of blood. You scored a clean miss and the bird has flown. All safe around here now, but may be dangerous on the trail ahead. Happens I know that a bunch of bronchos are loose over this way. They're looking for trouble."

"Bronchos? You mean wild horses—mustangs?"

"No—Apaches. Renegades are called bronchos. What do you figure on doing now, with your burro dead? Out prospecting, I noticed by your outfit. What were you heading up this way for, anyhow? The agents don't want prospectors on the Moqui or Navaho reservations."

"But I didn't intend to cross the boundary," explained Lennon. "About seventy miles on around this trail bend, I was to strike in eastward to a three-towered mountain. Old friend of mine discovered a big copper vein there in the early 'Nineties. A party of Indians ran him out of the country and so maimed him that he never could return."

"Why, that must be Cripple Sim and his——" The girl checked herself and tightened her lips. "Well, what you going to do about it? Hike back to the railroad?"

"Certainly—to get another burro. We might return together for mutual protection, unless you'd rather trust to your pony's heels."