What IS the "double sin" in "Double Sin"?

hotwater

Does it refer to the pair of crooks themselves? Does it refer to the "theft" of the miniatures plus the ripping off of the American collector? Does it refer to the engineered "theft," plus the accusation against the innocent Kane? All or none of the above?

taliavishay-arbel

I think the last possibility is right - the end result of the trick is that:
a. the American, Wood, pays for the miniatures and then loses them, and
b. the young man, Kane, is suspected of theft and may yet be charged.

In both cases it was deliberate - the aunt in disguise took the miniatures to Wood, and the neice cast suspicion on Kane by claiming to have seen him going to the luggage when it was unsupervised, so they both can be called "sins". (I had to go back to the story to make sure!)

PoirotBabosaGalaxy

I thought Double Sin was just a title of a short series collection that Agatha Christie had devised to make you think that two crooks were after the little grey miniatures. Or was it about being doubly sinful as to think that you could have read about two detectives such as Marple and Poirot together in the same space?