So, Pilgrims of Tarloan is an anthology of haibun (Japanese literary form that alternates between poetic prose and haiku) written by people on sacred pilgrimages through another world. The Library's copy is a translation of the original manuscript by an early 20th-century scholar and the original has yet to be recovered or appear (as far as anyone knows) in the library itself.
The "Librarian's Note" off to the right acts as context and potential synopsis if this interests anyone as its own book, so it probably won't be there in any final iteration.
http://wanderers-sandbox.wikidot.com/rademacher-s-sandbox
Thanks for reading!