HailChina? I have never read an Agatha Christie book. I don't read mystery books. But I read an Agatha Christie short story - it is called Call of Wings and its in the book Detours into the Macabre. Or The Lucifer Society. The first short story in the book was written by Winston Churchill you know.
And I read a while ago that Agatha Christie wrote one of the first post apocalypse books and I thought that I might like to read that.