r and pencil made a rough sketch which she
marked 1 NW. She rode on, mapping her trail and adding letters and
figures to denote distance and direction.

Her continued scrutiny of the back trail satisfied her that she was
not followed. Two hours brought her to her journey's end, a rock wall
some seven miles from her cabin. Producing the photograph, she
verified the exact location, and with her pick, proceeded to stir up
the ground and loose rocks at the base of the ledge. For an hour she
worked steadily, then carefully replaced the dirt and small fragments,
taking care to leave the samples from her sack where they would appear
to have been tossed with the other fragments. Indicating the spot by a
dot on the photograph she rode back to her cabin and spent the entire
afternoon covering sheets of paper with trail maps, and letters, and
figures, in an endeavor to produce a sketch that would pass as a
prospector's hastily prepared field map. At last she produced several
that compared favorably with her father's and taking a blank leaf from
an old notebook she found in the pack sack, drew a very creditable
rough sketch.

"Now, for putting in the letters and figures," she said, as she held
the paper up for inspection. "Let's see, where would daddy have
started from? Watts's ranch, maybe, or he could have started from
here. This cabin was here then, and that would make it seem all the
more reasonable that I should have chosen this for my home. C stands
for cabin, or, let's see, what did they call this place. The sheep
camp, here goes SC--Why! SC--SC! That's the starting point on daddy's
map! And here I sat right in this chair and nearly went crazy trying
to figure out what SC meant! And, if it weren't so late, I'd start
right out now to find my mine! If it weren't for that a. b. part I
could ride right to it, and snap my fingers at the prowler. But, it
may take me a long time to blunder onto the meaning of these letters,
and anyway, I want to know 'who's who,' as Mr. Christie says." She
continued her work, and a half-hour later examined the result
critically. "SC 1 NW 1 N [up arrow] to [union symbol] 2 E to a. Stake L. C.
center at dot," she read, "and just to make it easier for him, I put
the a. down on the map." With a sigh of satisfaction the girl
carefully placed the new map and photograph in the silk envelope, and
placing the others in the pocket of her shirt, fastened it with a pin.
Whereupon, she gathered up all the pra