The Grimm brothers always said that their informants were women, which is possibly not true, women of the people. There is the constant evocation of women's voices, in the collecting and arrangement of these stories, and yet the message of so many of them is incredibly misogynist. I was very puzzled by that, and that book explores that contradiction.

The French Revolution printed money because they didn't have any, so they just printed it, and this was a revolutionary step which of course we are still reaping the huge consequences of today. It struck me that this was beginning to happen...there had been scandals where shares had been printed.

Although the stories are very present in my book, and very present in my mind, what I was most interested in was the question of why it had attracted such a following in the 18th Century. It's less mysterious that it attracted a following in the Romantic period, and in the 19th Century, but the early 18th Century when the Rationalists fell in love with it...that was mysterious. What I wanted to look at was the forms of enchantment.

Romance, in its earliest surviving form, was called ‘erotika pathemata’ by the Greeks - tales of erotic suffering.

I do not think commodities are taken for granted. One of the convergences in time I noticed, and to me seemed very important, was the emergence of paper money. There had been permissionary notes, exchanging money by writing it, but there was no duplicated form of guaranteeing an exchange.

If you want a good handbag and glasses, it's hard to get something without the brand name on it because it's so important to have the charmed inscription. The only way you do it... This handbag was the only one in the shop without a charmed inscription. It's just an ordinary bag. I went into the department store in Sloane Square, because I needed a new bag, because my old one lost its handles. Then I found this one, and I said "Why is it so cheap?" and the seller said, "Because it doesn't have a name!"

If you want to learn about a culture, you look at what buildings the people lived in but you also want to know about their cosmos.