long letter to Innes in which I gave him my American address, I saw
the expedition head south.

Among the other things which I sent to Innes was over five hundred
miles of double, insulated wire of a very fine gauge. I had it packed
on a special reel at his suggestion, as it was his idea that he could
fasten one end here before he left and by paying it out through the end
of the prospector lay a telegraph line between the outer and inner
worlds. In my letter I told him to be sure to mark the terminus of the
line very plainly with a high cairn, in case I was not able to reach
him before he set out, so that I might easily find and communicate with
him should he be so fortunate as to reach Pellucidar.

I received several letters from him after I returned to America--in
fact he took advantage of every northward-passing caravan to drop me
word of some sort. His last letter was written the day before he
intended to depart. Here it is.

My Dear Friend:

Tomorrow I shall set out in quest of Pellucidar and Dian. That is
if the Arabs don't get me. They have been very nasty of late. I
don't know the cause, but on two occasions they have threatened my
life. One, more friendly than the rest, told me today that they
intended attacking me tonight. It would be unfortunate should
anything of that sort happen now that I am so nearly ready to
depart.

However, maybe I will be as well off, for the nearer the hour
approaches, the slenderer my chances for success appear.

Here is the friendly Arab who is to take this letter north for me,
so good-bye, and God bless you for your kindness to me.

The Arab tells me to hurry, for he sees a cloud of sand to the
south--he thinks it is the party coming to murder me, and he
doesn't want to be found with me. So good-bye again.

Yours,
David Innes.

A year later found me at the end of the railroad once more, headed for
the spot where I had left Innes. My first disappointment was when I
discovered that my old guide had died within a few weeks of my return,
nor could I find any member of my former party who could lead me to the
same spot.

For months I searched that scorching land, interviewing countless
desert sheiks in the hope that at last I might find one who had heard
of Innes and his wonderful iron mole. Constantly my eyes scanned the
blinding waste of sand for the ricky cairn beneath which I