I’ve been reading up on the French Revolution – Hilary Mantel’s colossal A Place of Greater Safety, and Simon Schama’s Citizens. I’m quite obsessed with the character of Robespierre, and sense the germ of an idea for a book, although I have so many germs for books I could start a plague. Ideas, as we all know, are easy. Doing something with them is a different kettle of piranhas.