"Back in the summer I’d made the mistake of telling my mum what I did for a living. Not the police bit, which of course she already knew about, having been at my graduation from Hendon, but the stuff about me working for the branch of the Met that dealt with the supernatural. My mum translated this in her head to “witchfinder,” which was good because like most West Africans, she considered witchfinding a more respectable profession than policeman."