looking for the "right" version!

Bonjour Stéphanie

I hope you can help me with my "little" problem I am still looking for " Un piège pour Catherine" and " La Dame de Montsalvy" by Trèvise. I have seen "piège pour Catherine" by Abebooks. My question: which is the older version, the one with the castle in the background and Catherine in front - or the other one, with also a bit of castle, a man (Philippe?) and Catherine.
Also, how does the original cover look like from "La Dame de Montsalvy?

It would be awfully nice if someone told me I am collecting them - and these two are still missing..

I have begun to study French...like listening to old French songs and watch French news and maybe I shall take some French lessons. And who knows, I shall try to write in French

Best wishes to all of you. Mistral