Finding a good holiday link

Watching Rick Stein cook his way round the Mediterranean the other night one of the little touches he kept throughout the programme in each country was to find a literary hero who had written about the place he was visiting. Most of the writers he chose were British writing about foreign lands from the perspective of a traveller. His approach is a great one because it adds a different dimension to the trip. As a result I am trying to dig out books that have a Swiss connection. Have a few so far but it remains to be seen if the link is just a fleeting glance through a railway carriage window or with the action actually based in my chosen holiday destination.