“Lamphere was not alone when his thoughts went straight to where Philby’s loyalties lay: ‘I’m not saying much. They’re not saying much. I know one thing for sure: I’ve been lied to for a long time by MI5 … I’m thinking, “Maclean has fled. Burgess, who had been in Philby’s house, has fled with him. Surely Philby tipped off Maclean.”