Elephants can remember - Wig issue******SPOILER ALERT******Please do not proceed if you haven't read
I have a question:
How did Poirot realize that Dolly was wearing her sister's favourite wig if we don't have any clue what wig was the original Lady Ravenscraft wearing? Why does he say we know that on the day of the tragedy Lady R. was wearing the curly wig? Am I missing something?