"Yes," answered the stranger, looking up.

"So am I," nodded the gambler. "So I shall probably have the pleasure
of meeting you again."

"Why, yes; I trust so," replied the stranger, after a quick, keen look
at Duff. Undoubtedly this newcomer was accustomed to judging men
quickly after seeing them.

"These boy engineers!" chucked Duff. "Humph!"

"Humph!" agreed the stranger.

At this moment two bronzed-looking, erect young men came tramping down
the sidewalk together. Each looked the picture of health, of courage,
of decision. Both wore the serviceable khaki now so common in surveying
camps in warm climates. Below the knee the trousers were confined by
leggings. Above the belt blue flannel shirts showed, yet these were of
excellent fabric and looked trim indeed. To protect their heads and to
shade their eyes as much as possible from the glare of Arizona desert
sand, these young men wore sombreros of the type common in the Army.

"This looks like a good place, Harry," said the taller of the two young
men. "Suppose we go inside."

They stepped into the barber shop together, nodding pleasantly to all
inside. Then, hanging up their sombreros, they passed on to unoccupied
chairs.

Just in the act of passing out, Jim Duff had stepped back to admit them.