uld have been blocked, and a rider had to pull his legs up over
the saddle. On the far side, the passage fell very suddenly for several
hundred feet to the floor of the other canyon. No hunter could have
seen it, or suspected it from that side.

"This is Grand Canyon country, an' nobody knows what he's goin' to
find," was Frank's comment.

"Now we're in Nail Canyon proper," said Stewart; "An' I know my
bearin's. I can climb out a mile below an' cut across to Kanab Canyon,
an' slip up into Nail Canyon agin, ahead of the mustangs, an' drive 'em
up. I can't miss 'em, fer Kanab Canyon is impassable down a little
ways. The mustangs will hev to run this way. So all you need do is go
below the break, where I climb out, an' wait. You're sure goin' to get
a look at the White Mustang. But wait. Don't expect him before noon,
an' after thet, any time till he comes. Mebbe it'll be a couple of
days, so keep a good watch."

Then taking our man Lawson, with blankets and a knapsack of food,
Stewart rode off down the canyon.

We were early on the march. As we proceeded the canyon lost its
regularity and smoothness; it became crooked as a rail fence, narrower,
higher, rugged and broken. Pinnacled cliffs, cracked and leaning,
menaced us from above. Mountains of ruined wall had tumbled into
fragments.

It seemed that Jones, after much survey of different corners, angles
and points in the canyon floor, chose his position with much greater
care than appeared necessary for the ultimate success of our
venture--which was simply to see the White Mustang, and if good fortune
attended us, to snap some photographs of this wild king of horses. It
flashed over me that, with his ruling passion strong within him, our
leader was laying some kind of trap for that mustang, was indeed bent
on his capture.

Wallace, Frank and Jim were stationed at a point below the break where
Stewart had evidently gone up and out. How a horse could have climbed
that streaky white slide was a mystery. Jones's instructions to the men
were to wait until the mustangs were close upon them, and then yell and
shout and show themselves.

He took me to a jutting corner of cliff, which hid us from the others,
and here he exercised still more care in scrutinizing the lay of the
ground. A wash from ten to fifteen feet wide, and as deep, ran through
the canyon in a somewhat meandering course. At the corner which
consumed so much of his attention, the dry ditch ran along the cli