The Forbidden Grimoire can be found in a secret compartment underneath a lich’s phylactery, locked away in the most forbidden section of a well-guarded library, or in the clutches of a vampire lord seeking ascension. Regardless of level, system, or experience in the arcane, this grimoire far exceeds your capabilities, and to attempt to cast some of the few spells that you can decipher from its pages has the potential to warp the fabric of reality irreversibly.
This is a companion discussion topic for the original entry at https://rpgtrader.com/products/10024/the-forbidden-grimoire