Lissa Evans has had a good idea for her new novel. It’s ‘suffragettes: the sequel’. She sets her story not in 1918 but in 1928. Two washed-up spinster suffragettes in their sixties, Florrie (known as ‘the Flea’) and Mattie, live together platonically in a house in Hampstead known as the Mousehole, because it used to be a convalescent home for hunger-striking suffragettes during the Cat and Mouse Act.