 Enquiries lead to the Notting Hill boarding house where the dead woman lived and Tommy takes a room there incognito to try to infiltrate what is assumed to be a nest of spies.Louise follows him to London and confronts him, and he is forced against orders to take her into his confidence.She also takes a room and the couple pretend not to know each other, giving their names as a Mr. Bullock and a Miss Heffer.