The duties of T. X. were multifarious. People said of him - and like most public gossip, this was probably untrue - that he was the head of the "illegal" department of Scotland Yard. If by chance you lost the keys of your safe, T. X. could supply you (so popular rumour ran) with a burglar who would open that safe in half an hour. Это и многое другое вы найдете в книге The Clue Of The Twisted Candle (Edgar Wallace)