Darkwave Tales: Kingmaker
This tome is bound in living demon skin and radiates evil.
Spellbook – This tome is bound in living demon skin and radiates evil. The pages are parchment created from humanoid victims who were flayed alive for the sole purpose of creating a single page each. The tome contains 300 pages.
To scribe a spell into the book, a scroll holding the spell must be soaked in the blood of an unwilling sacrifice for 1 day (minimum of 5hp of damage per level of the spell must be inflicted when drawing the blood). The scroll is them placed on a blank page and the spell is transferred to the page, destroying the scroll in the process.
Once per day the spellcaster may cast any spell of any level they could normally cast directly from the book.