I've got a copy of this that I've yet to read. Back in the Eighties, the Franklin Library put out a collection of mysteries. All were leather bound, except for this one, which was done in (I think) suede...to feel like a mouse? The volume includes a number of other Chrisitie plays, including 10 LITTLE INDIANS/AND THEN THERE WERE NONE (however, there is a twist at the end, to throw off anyone already familiar with the novel).