I was given this red book entitled "Sevescori". It seems to be a strange philosophy book that distinctly describes a creature nearly identical to the Seed Eater. It also notes what appears to be the origin of the Seven Ordinances.
Brady said that he was told the book is somewhere around eighty years old, but I think it's more likely to be around forty to fifty years in age, probably produced in a limited run - or it may be the only one of its kind. There is no copyright details, no author and no date of publication.