Confronted with their evidence Jonas gave himself up for lost, but old Chuffey, whom he had so abused, escaped the watchful eye of Sairey Gamp and entered just in time to keep his promise to his dead master and to clear Jonas, the son. He told them how it had really happened: How Jonas had intended to kill his father but how the latter's death had been due, not to the poison which he had never taken, but to the knowledge of his son's wickedness.
Jonas, in the reaction from his fear, laughed aloud, and was abusively ordering them to leave, when the door opened and the color suddenly left his cheeks. Policemen stood there, and at their head was Nadgett, the spy.
In another moment there were handcuffs on his wrists and he knew not only that the murder of Tigg had been discovered, but that every action of his own on that fatal night had been traced and that he was surely doomed to die on the gallows.
When he realized that he was lost he fell to the floor in pitiable fear. They put him in a wagon to take him to jail, but when they arrived there they found him motionless in his seat. He had swallowed some of his own poison which he carried in his pocket, and was as dead as any hangman could have made him.
Old Chuzzlewit had yet another purpose to carry out before he left London, and for this purpose he asked Westlock to meet him in his rooms at a certain time next day. He sent for Tom Pinch and his sister Ruth, for his grandson Martin, and Mark Tapley, and last, but not least, for Pecksniff himself, all to meet him there at the same hour.
All save Pecksniff arrived together, and greatly astonished most of them were, you may be sure, to see old Chuzzlewit so changed. For now the dull, bent look had vanished. His eyes were bright, his form erect and every feature eager and full of purpose. Even Mary Graham scarcely knew what to make of it.
As they sat wondering and waiting for old Chuzzlewit to speak, Pecksniff came hurriedly in, to start back as if at a shock of electricity. But he recovered himself, and clasped his hands with a look of pious joy to see the old man safe and well. Then he looked around him and shook his head.
"Oh, vermin! Oh, bloodsuckers!" he said. "Horde of unnatural plunderers and robbers! Begone! Leave him and do not stay in a spot hallowed by the gray hairs of this patriarchal gentleman!"
He advanced with outstretched arms, but he had not seen how tightly old Chuzzlewit's hand clasped the walking-stick he held. The latter, in one great burst of indignation, rose up, and with a single blow, stretched him on the ground. Mark Tapley dragged him into a corner and propped him against the wall, and in this ridiculous position, cringing, and with his assurance all gone, Pecksniff listened, as did they all, to the old man's story.
He told the assembled company how the curse of selfishness had seemed to him always to rest upon his family. How he had misunderstood Martin, his best loved grandson, and how he had seen Pecksniff doing his best to add to this bad feeling. He beckoned Martin to him and put Mary's hand in his, as he told how he had tested them both and had at last resolved to see to what a length the hypocrisy of Pecksniff would lead him. How to this end he had pretended feebleness of mind and had planned and plotted finally to expose Pecksniff and set all right.