The Boneturner's Tale is a book with paranormal properties. It is a thick black paperback book. The author is unknown, and the book is written in English.
The Boneturner's Tale is either written from the perspective of a pilgrim in The Canterbury Tales or somebody following them on their pilgrimage who calls himself the Bonesmith. It includes unnerving details like how the cook would stare at the pardoner as he did with the meat he prepared. On page 16 it reads "and from his rib a flute to play that merry tune of marrow took" as the bonesmith kills the miller.
The book's exact effects are unknown, but after a time appears to distort the reader's appearance and give them control over the structure of bones.
It also seems to cause other books in its vicinity to bleed. (MAG 17)