Original sentence: ) - Editor of "The Mega Wave" written by Dr.) - attaché at the Psychiatric Institute.A BBC Studio.A public house.Adams - Plainclothes police at Limehouse stakeout.Benson - Household staff at Blake and Mortimer's Residence.Bill - Driver of police car pursuing Yellow "M" after Limehouse stakeout.Blake and Mortimer's Residence, 99a Park Lane.Calvin, Hugh (Sir) - a cigar-smoking judge at the central criminal court.Centaur Club.Charing Cross Hospital.Charles (Sir) - Chief Police Commissioner.Coptic Street.Daily Mail.Drummond - British Commissioner of the district where Fanaka is located Sudan.Eastern Dock.Fanaka,  a small village in the province of the Blue Nile.Glover - Print room chief.It was Drummond who first discovered the amnesiac Olrik, and contacted Septimus.James - butler.John Wade (pseudonym of Septimus).Kendall, Glen - Chief Inspector assigned to investigate the disappearance of Vernay.King's Cross railway station.Law courts.Limehouse Dock.London's Sewer System.London, England.Macomber, Leslie - pipe-smoking Chief editor of the Daily Mail.Nasir - Mortimer's servant.New Oxford Street.Offices of the Daily Mail, Fleet Street.Only mentioned in the story, having passed away in 1922 after his libel suit against Vernay and Macomber failed at the ruling of Calvin.Patrick - Policeman assigned to guard Septimus' residence.Phill - Porter.Piccadilly Circus.Resides in Tavistock Square.Scotland Yard.Septimus, Jonathan (Dr.Shaftesbury Avenue.St Katharine Docks.Steve - Editorial secretary.Stone - Archivist.Sudan (flashback).Tavistock Square.The British Library.The Centaur Club, located in Piccadilly.The Prime Minister - bears a strong resemblance to Sir William Grey, head of the secret base of the Swordfish, and Winston Churchill.The Prime Minister's Residence, 10 Downing Street.The drama takes place almost exclusively in London with a brief flashback to Egypt and Sudan.Thornley, James (Dr.Tower of London.Train London Ipswich Suffolk (England).Vernay, Robert (Professor) - president of the British Medical Association.Wisko, an isolated spot in the middle of the desert where Septimus discovered Olrik