The Endless Stride
A 100 year old Enkheiridion filled with long lost scriptures, prayers and hymns.
Found in the Lost Library, this book contains the personal journal entries of a long perished Monk of Keeping.
The journal can be read when time permits and requires extreme focus and concentration to get through as most of the Monks hand writing seems to be illegible ramblings.
A person can spend 1d6 hrs studying the book to decipher its contents, or sell it to a collector for a hefty price.