erviewing Stan, I saw you hurrying through the gates. You looked
round, and seemed anxious that no one should see you. That made me
curious. I'd just been reading my father's letter to you--remember. I'd
begun to see there was some mystery which wanted clearing up. Why
shouldn't I have a hand in it? I asked myself. So forgive me, Paul, I
followed you."

Paul was silent. How could he blame him? Was it not the same spirit of
curiosity which had first led him to that place?

"It was fortunately dusk, and I took good care that you shouldn't see
me," continued Harry. "Besides, you seemed to be so taken up with your
own thoughts that you scarcely looked round once when you had gained the
common. It was easy following you after that. I was never so puzzled in
my life when I saw you creeping about amongst the bushes, then disappear
through the ground.

"I was so close to you then, that I saw the exact place where you had
disappeared, so that it did not take me long to find the opening to the
tunnel. I must say that I funked following you farther; but my curiosity
grew. I was on the verge of a big discovery. If I followed you, I should
find out the secret which would explain the mystery about you, and set
you right with the school. Believe me, Paul, that was what I longed for,
and I don't think that anything short of that would have made me go
farther, and so I felt my way along the tunnel until I could just see
you stretched at full length beside the curtains at the entrance to this
place."

Paul recalled the sounds he had heard as he made his way along the
tunnel. His hearing had not deceived him after all.

"I was still more amazed when I saw that, I can tell you. I was struck
all of a heap," went on Harry. "What were you up to? What were you doing
there? You seemed to be watching for somebody. Who? I was burning. I got
more and more curious. All thought of turning back had gone. I must find
out what it all meant. So, when you rose to your feet, and stepped
cautiously into this chamber, I just as cautiously crept to the place
where you had been lying, and watched you moving about. Then I saw the
man you called Zuker enter, and all that went on after.

"It was fearful, Paul. I saw you were in a fix, but I could do nothing
to help you. Once I tried to cry out. It was when that man used the long
foreign word. I did not understand what it meant at first, though you
seemed to; but presently, when you began to say 'Our Father