Blackemoor's Grimoire

An extremely thick tome, consisting of hundreds of pages. There's an embossed golden cherub on its cover. The pages are inscribed with archaic writings, and images of various bizarre creatures and landscapes, drawn in a classical style. The text is confusing and full of logical twists. You feel your head swimming and quickly become lost if you try to read more than a page at a time. It would take a very long time to read the whole thing.