Now the ancestors remind their degenerate successor that it is their duty to see that he commits his daily crimes in conscientious and workmanlike style. They are not impressed with his record of the crimes he has so far committed. "Everybody does that," they tell him, when he declares that he has falsified his income-tax return, and they are also unmoved when he says that, on other days, he forged his own will and disinherited his unborn son. They demand that he must at least carry off a lady, and when he refuses they torture him until, in agony, he has to accept their command. When the ghosts have returned to their frames Old Adam is accordingly ordered to bring a maiden--any maiden will do--from the village.
Once more we meet Sir Despard and Mad Margaret. They are prim of manner, they wear black of formal cut, and in every way their appearances have changed. They are married and conduct a National School. The ex-baronet has become expert at penny readings. Margaret, now a district visitor, has recovered her sanity, though she has occasional lapses. The quaint duet between them is followed by a meeting with Robin, who hears that his record of infamy includes not only the crimes he has committed during the week, but all those perpetrated by Despard during the ten years he reigned at Ruddigore. He decides, even at the cost of his life, to bid his ancestors defiance. But now Old Adam returns, not with a beautiful maiden, but with old Dame Hannah. She is a tiger cat indeed, and despite the baronet's declaration that he is reforming and that his intentions towards her are honourable, she seizes a formidable dagger from one of the armed figures and declares for a fight to the finish. The episode is interrupted by the re-appearance of the ghostly Sir Roderic. What is more, he and Dame Hannah recognise themselves as old lovers, and a whimsical love-scene leads up to a tender little ballad about the "flower and the oak tree."
The end comes swiftly. Robin, accompanied by all the other characters, rushes in to declare his happy discovery. He argues that a baronet can die only by refusing to commit his daily crime, and thus it follows that a refusal to commit a crime is tantamount to suicide, which is in itself a crime. The curse will thus not stand logical analysis! Sir Roderic concurs, and as the natural deduction is that he himself ought never to have died at all, he and Dame Hannah are able at last to bring joy and laughter within the grim walls of Ruddigore. Robin, having found a week as holder of a title ample enough, determines to earn a modest livelihood in agricultural employment, and this time he both claims and keeps the hand of Rose Maybud. Richard, robbed of his intended bride, soon replaces her from amongst the troup of professional bridesmaids, while Despard and Margaret leave to pass a secluded existence in the town of Basingstoke.