Charles Dickens prowled around London and its slums at night, observing and inventing. He arrived as a boy of ten and his family moved home nine times in eleven years, though only 48 Doughty Street, now a Dickens museum, remains. At No 6 Golden Square, Ralph Nickleby worked, lived and hanged himself. There’s hardly a part of London which Dickens, in fact or fiction, didn’t have connections with. Diane is a Blue Badge Guide and this is her second visit to the Lit.