As Flies to Whatless Boys (2013) may be that it features some fictional correspondence with the Director of the Trinidad and Tobago National Archives. The reason that I loved the novel, though, is because the archivist has fictional sex with the "Robert Antoni" character, but still refuses to let him make photocopies of the diary he is using to write the story how his great-great grandfather came to Trinidad. PHOTOCOPIES ARE AGAINST THE RULES, DUDE! She will, however, gladly continue to have sex with him while he is in town.
Antoni's relatives came to Trinidad from England in 1845 as part of a group attached to the eccentric German inventor John Adolphus Etzler, who has taken their investments to begin a utopian commune in rural Trinidad where they can all make their fortunes. Fifteen-year-old Willy has come with his parents and three sisters. Also on the long boat ride to the island is Marguerite Whitechurch, a beautiful and mute girl a few years older than Willy with whom he is pretty seriously in love. As you might expect, things don't really work out with the utopian society, and they don't work out in a rather desperate way.
The narrative bounces back and forth between the 1845 boat trip, the year leading up to their departure, the first few months in Trinidad, a grown up Willy telling the story of his arrival in Trinidad to his son as he prepares for his first trip back to England, and the modern day author's research in the T&T National Archives (told for us through the Trinidadian email vernacular of Miss Ramsol, the archivist). We also get newspaper clippings, sketches from his father's journal, and other wide-ranging primary sources. This narrative bounciness takes a little bit of getting used to, but if you are a smart reader who likes something different, this will make you happy instead of sad. And it isn't totally out of control -- this isn't Cloud Atlas (although sometimes it does give you a bit of that feeling).
Uniquely, the book features an online appendix consisting of a couple of artistic short films and a series of recreated documents. Even if you never plan to read the book, the appendix is worth poking around in -- his historically accurate reproductions are impressive and don't really provide any spoilers if you think you'll read the book later. This is the kind of thing that I would ordinarily find really gimmicky, but in the context of this book it absolutely works. The pieces are perfectly crafted and really do add a depth and context to the narrative that is missing from the book alone. It was definitely a risk (like much of the narrative itself), but I'd say it paid off.
[I got my copy of this book through the LibraryThing Early Reviewers program.]