My older sister had a huge (well, I was nine, so the twenty or so books seemed huge) collection of Agatha Christies. In attempts to be more like her, I would set out to read each one she had. After a couple I realized I really did like them, and would slowly transport her library to my own. I never got through the majority of the collection, and don't remember the seperate stories real particularly, but I still have a few of hers and now some of my own.

I do remember this one though because it took me a couple tries to finish it. Overall it wasn't one of the better ones though.