The Book of Corrupted Tales is a harvestable that can be found in the Nightmare. It can be found from various sources and locations throughout the Nightmare including but not limited to:
- Being harvested from End of the Road, Meeting Place, The Grand Hall, The Hidden Library, The Mansion, The Old Mansion, The Road, The Theatre, and The Ballroom.
In appearance, the Book of Corrupted Tales is a worn-out leather book overtaken by Lool Flowers. If the player has no purpose for the Book of Corrupted Tales, it can be sold for 9,000 gold.