At the same time, the occupants of the chairs received a sharp electrical shock, that agitated every limb, and caused Mr. Thorneycroft to let fall his pistol, which went off as it reached the ground. At the same time, the Sandman dropped his goblet, and the Tinker relinquished his grasp of the cutlass. Before they could recover from the shock, all three were caught by stout wooden hooks, which, detaching themselves from the back of the chairs, pinioned their arms, while their legs were restrained by fetters, which sprang from the ground and clasped round their ankles. Thus fixed, they struggled vainly to get free. The chairs seemed nailed to the ground, so that all efforts to move them proved futile. But the worst was to come. From the holes in the ceiling already alluded to, descended three heavy bell-shaped helmets, fashioned like those worn by divers at the bottom of the sea, and having round eyelet-holes of glass. It was evident, from the manner of their descent, that these helmets must drop on the heads of the sitters--a conviction that filled them with inexpressible terror. They shouted, and swore frightfully; but their vociferations availed them nothing. Down came the helmets, and the same moment the monkey, which had been seen by Reeks, issued from a cupboard at the top of a cabinet, and grinned and gibbered at them. Down came the first helmet, and covered the Tinker to the shoulders. His appearance was at once ludicrous and terrible, and his roaring within the casque sounded like the bellowing of a baited bull. Down came the second helmet, though rather more slowly, and the Sandman was eclipsed in the same manner as the Tinker, and roared as loudly. [Illustration: The Enchanted Chairs.] In both these instances the helmets had dropped without guidance, but in the case of Mr. Thorneycroft, a hand, thrust out of the hole in the ceiling, held the helmet suspended over his head, like the sword of Damocles. While the poor iron-merchant momentarily expected the same doom as his companions, his attention was attracted towards the monkey, which, clinging with one hand to the side of the cabinet, extended the other skinny arm towards him, and exclaimed--"Will you swear to go hence if you are spared?" "No, I will not," replied the iron-merchant. He had scarcely spoken, when the helmet fell with a jerk, and extinguished him like the others. Ginger alone remained. During the whole of this strange scene, he had stood with the bottle in hand, transfixed with terror and astonishment, and wholly unable to move or cry out. A climax was put to his fright, by the descent of the three chairs, with their occupants, through the floor into a vault beneath; and as the helmets were whisked up again to the ceiling, and the trap-doors closed upon the chairs, he dropped the bottle, and fell with his face upon the table. He was, however, soon roused by a pull at his hair, while a shrill voice called him by his name. "Who is it?" groaned the dog-fancier.