Wythyndle's Round Book

Wythyndle's Round Book was one of the few holy books of the church of Milil. It described several spells, including several ones exclusive to this book.

Description
The Round Book was shaped like a perfectly round disk, two thin slabs of unbreakable black stone encasing similarly round vellum pages. The external sides of the stone was decorated with interwoven lattices of a gleaming, silvery metal.