As Holly once said on Red Dwarf concerning
Murder On The Orient Express:"I think they all did it!"

I've just been rereading Three Act Tragedy (US: Murder in Three Acts), and it reminded me...

Besides being a pleasantly readable Poirot outing (I keep it around mostly for Mr. Satterthwaite, whom I love and frequently wish in Hastings' place), I believe it also has the distinction of being the only Christie novel where the solutions differ between the British and American editions. (The Moving Finger was also substantially rewritten, but the basic mystery is left intact.)

Apparently Christie was always unhappy with the original ending to Three Acts, and a young friend convinced her to rewrite it altogether. I've only ever read the original once, long ago, but it does come off as a bit more convoluted and unconvincing; unfortunately, the American rewrite feels distinctly tacked on, if a good bit more dramatic. Interesting, though, how the same story can be read both ways, shading one set of clues or the other.

Anybody else know of any other discrepancies?

Does anyone know where I can find a definitive order list for the Marple stories?