Paul, as may be imagined, was by no means opposed to that proceeding. So Harry drew out his pocket-knife and promptly severed his bonds.
"Ah, that's better," cried Paul, springing to his feet and stretching his limbs. "It's worth while being tied up, so as to feel how nice it is to be free again. Now perhaps you'll tell me how you got here?"
"There's really no fear of that man, Zuker, coming back?"
"No; I'm sure of it."
"Then I'll explain. First of all, I must tell you that I've done a mean thing. You lost a letter when that scrimmage took place between you and Stan in the Common Room. I found it, and seeing that it was from my father, read it; then I was too ashamed to give it back to you, so I kept it. Hearing that there'd been a meeting about you in the Forum, I took the letter to Stan and showed it to him. As I came away from interviewing 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.