Ignorant as I was of the force of gunpowder, it was with astonishment, mingled with horror, that I beheld, in a second, the claret case rise up as if it had wings, and Mr O'Gallagher thrown up to the ceiling enveloped in a cloud of smoke, the crackers and squibs fizzing and banging, while the boys in the school uttered a yell of consternation and fear as they rushed from from the explosion, and afterwards, tumbling over one another, made their escape from the school-room. The windows had all been blown out with a terrible crash, and the whole school-room was now covered by the smoke. There I stood in silent dismay at the mischief which I had done. The squibs and crackers had not, however, all finished popping, before I heard the howling of Mr O'Gallagher, who had fallen down upon the centre school-room table. I was still in the school-room, half-suffocated, yet not moving away from where I stood, when the neighbours, who had been alarmed by the explosion and the cries of the boys, rushed in, and perceiving only me and Mr O'Gallagher, who still howled, they caught hold of us both, and bore us out in their arms. It was high time, for the school-room was now on fire, and in a few minutes more the flames burst out of the windows, while volumes of smoke forced through the door and soon afterwards the roof. The engines were sent for, but before they could arrive, or water be procured, the whole tenement was so enveloped in flames that it could not be saved. In an hour, the _locale_ of our misery was reduced to ashes. They had put me on my legs as soon as we got clear of the school-room, to ascertain whether I was hurt, and finding that I was not, they left me. I never shall forget what my sensations were, when I beheld the flames and volumes of smoke bursting out; the hurry, and bustle, and confusion outside; the working of the engines, the troops marched up from the barracks, the crowd of people assembled, and the ceaseless mingling of tongues from every quarter; and all this is my doing, thought I--mine-- all mine. I felt delighted that I had no partner or confederate; I could, at all events, keep my own secret. I did, however, feel some anxiety as to Mr O'Gallagher, for, much as I detested him, I certainly had no intention to kill him; so after a time, I made inquiries, and found that he was alive: and in no danger, although very much bruised and somewhat burnt. No one could explain how the catastrophe occurred, further than that Mr O'Gallagher had collected all the squibs and crackers from the boys, and that they had exploded somehow or another--most people said that it served him right. My grandmother shook her head and said, "Yes, yes, gunpowder will go off, but--" and she looked at me--"it requires a match to be put to it." I looked up very innocently, but made no reply.