Many thanks to those who took the time to tell me about their favourite twin novels. As always happens when I ask readers for advice, there were some thought-provoking suggestions.

Familiar English-language titles, such as Arundhati Roy’s The God of Small Things and Helen Oyeyemi’s The Icarus Girl, featured alongside several other world classics. I was particularly grateful to Barbara for recommending Erich Kästner’s Das doppelte Lottchen. I watched the 1961 The Parent Trap recently, but hadn’t appreciated that it was an adaptation of this German novel.

I was also pleased to see that Dutch novelist Tessa de Loo’s The Twins appeared among the tips. I came across it some years ago and can agree with Betsy that it is a very worthwhile read.

Several of the titles you suggested were unfamiliar to me. I was particularly intrigued by Hungarian author Ágota Kristóf’s The Notebook, which Sabina brought to my attention. From what I’ve read about it online, it sounds like a fabulous book – even if, as Gremrien warned, it is rather dark.

In the end, though, I could only pick two winners to receive an audiobook of my own twin novel, Beside Myself. After much deliberation, I plumped for two commenters who had not only suggested tempting titles that were new to me, but had also described them in intriguing ways that have already sent me scampering off to track them down. They are Lizsmithtrailingspouse, for her suggestion of Italian classic The Garden of the Finzi-Continis, and Gremrien, who suggested Anatoly Pristavkin’s The Inseparable Twins.

Congratulations to them and very many thanks to everyone else. Winners, I’ll be in touch.