Arthur Quiller-Couch left unfinished at Quiller-Couch's death and was completed many years later by Daphne du Maurier. As she wrote in the "Sunday Telegraph" on April 1962, she began the job with considerable trepidation, at the request of Quiller-Couch's daughter and "in memory of happy evenings long ago when 'Q' was host at Sunday supper". He features as a main character, played by Leo McKern, in the 1992 BBC television feature "The Last Romantics". The story focuses on his relationship with his protégé, F. R. Leavis, and the students. His Cambridge inaugural lecture series, published as "On the Art of Writing", is
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.