Book of Five Truths (The Third Truth)
Scribes recorded five truths on scrolls at the start of the Dawn War and then scattered the scrolls throughout the planes of existence. Each scroll grants its reader essential insight into the nature of being.
Legendary Boon 85,000 gp
When performing a ritual, roll twice and take the better result.
Published in Dungeon Master's Guide 2, page(s) 143.