Originally Posted by wayspooled
I agree with your choices.
Eric Ambler "A Coffin for Demetrios" - I haven't read anything else by him but that's one heck of a book.
You are very lucky!!! This means that you still haven't read
THE NIGHT COMERS
THE INTERCOM CONSPIRACY
These three, together with "The mask of Dimitrios" (in USA published as "A Coffin for Dimitrios"), are, in my opinion, the best he has written.