Jonathan Couch remains. The "History of Polperro", (1871), issued after his death by his son, T. Q. Couch, is his chief work in this department. The stories in this book were re-used by Louisa Sarah Ann Parr in her successful novel about smuggling titled "Adam and Eve". Couch left three sons by his second wife: Richard Quiller, Thomas Quiller (father of Sir Arthur Quiller-Couch), and John Quiller, who all became surgeons (Quiller being their mother's maiden name and Quiller's House the family residence). Thomas practised successfully at Bodmin, and died on 23 October 1884, aged 58. He was a constant contributor to
The Quiller Memorandum following him. Having earlier told Hengel he understands no German, Quiller is revealed to speak it fluently. The man strenuously denies following him, and two other men intervene. Quiller returns to his hotel; outside a porter bumps into Quiller's leg with a heavy suitcase. Though the porter says 'excuse me', Quiller suspects it was intentional. Quiller jumps in his car and drives off, managing to shake Hengel, who sees men in another car following. Quiller notices the other car following him, but is becoming drowsy from a drug that was injected when the porter bumped his leg with the suitcase.