A highly interesting novel to read is ‘Possession’. It typically fits into this blog for it is about a correspondence between two writers in the 19th century. Moreover, the main characters researching the works of these writers are two academics. This book is written in such a realistic way that it certainly seems like the writers are genuine ones. This is accomplished through stating (made up) sources and also in the way the characters analyse the letters.
Furthermore, Byatt has created many letters and passages of works the writers would supposedly have written. This adds to this genuine feeling. Here is a link to a site with additional information.