Overview: Phyllis flees back to London following the ghastly incident with Rosemary. Charles remembers Peter from Eaton and stuns Arthur with the revelation of why Peter left school at sixteen. Elizabeth learns Peter's secret from Arthur and is tasked with dissuading Victoria from pursuing him. The family receives a holiday call from Helen and Anne, who will be returning soon to Larkfield Manor. Geoffrey and Rosemary visit Arthur to set him straight about Peter's scandalous past.