"Polly the Pagan: Her Lost Love Letters" by Isabel Anderson is a novel that reveals the letters and the journal of a young American girl traveling in Europe, Polly the Pegan.

Excerpt:

These letters and the journal of a young American girl traveling in Europe came to me under circumstances as strange as they themselves were unusual. Some of the letters were written on heavy blue stationery without monogram or heading; some bore the names of various continental hostelries: many were written on the embossed paper of the United States Embassy at Rome. All were faded with age and were without envelopes, definite dates, or identifying signatures.