Anchor: Was it Julius Hersheimmer who helped you to escape? Tuppence recounted to Sir James the exciting events of the evening, ending up: "But I can't see WHY!"
Entailed: Miss Tuppence was talking to Sir James
Contradiction: Miss Tuppence did not ask Sir James any questions
Contradiction: Two men fight in a boxing ring.
Contradiction: It appeared to be coarse kitchen salt.
Contradiction: That is definitely what one would call roughing it.
Contradiction: There's food and drink at the end regardless of the option you pick.