LOL, mitford.
Glad you got it, Belle. Have you read it before? Looks like that was just part of their sale, as now it is up to $4.49. Edited to add: I guess that's not it because the sale is still apparently going on. However, all of the books on my wishlist are more than they were last night. Hmmm.
Oh yeah, that's a good Agatha Christie. Very unusual twist to it.