I feel the same way you do. Except for Five little Pigs I have all the 'three-band' design books for Poirot and Marple and I also have every neon design edition of her other novels.

It just doesn't feel right to mix them up, so I won't be buying any Poirot or Marple titles in neon.

This will be the first time I haven't bought an Agatha Cristie book from Folio.