Then a sharp report from the outer world broke through his stupor and roused him to the unutterable horror of his position. What it was, he never knew—perhaps it was some belated peal from the fireworks heard all summer on Federal Hill as the dwellers hail their various patron saints, or the saints of their native villages in Italy. In any event he shrieked aloud, dropped frantically from the ladder, and stumbled blindly across the obstructed floor of the almost lightless chamber that encompassed him.