# Duplicitous Manuscript *Wondrous item, spellcasting focus, rare (requires attunement by a wizard)* - **Weight**: 3.0 lbs. To you, this book is a magical spellbook. To anyone else, the book appears to be a volume of verbose romance fiction. As an action, you can change the book's appearance and alter the plot of the romance. When found, the book contains the following spells: [hallucinatory terrain](/Rules/Source/spells/hallucinatory-terrain-xphb.md), [major image](/Rules/Source/spells/major-image-xphb.md), [mirror image](/Rules/Source/spells/mirror-image-xphb.md), [mislead](/Rules/Source/spells/mislead-xphb.md), [Nystul's magic aura](/Rules/Source/spells/nystuls-magic-aura-xphb.md), [phantasmal force](/Rules/Source/spells/phantasmal-force-xphb.md), and [silent image](/Rules/Source/spells/silent-image-xphb.md). It functions as a spellbook for you. While you are holding the book, you can use it as a spellcasting focus for your wizard spells. The book has 3 charges, and it regains `dice:1d3|noform|noparens|avg` (`1d3`) expended charges daily at dawn. You can use the charges in the following ways while holding it: - If you spend 1 minute studying the book, you can expend 1 charge to replace one of your prepared wizard spells with a different spell in the book. The new spell must be of the illusion school. - When a creature you can see makes an Intelligence ([Investigation](/Rules/Source/skills.md#Investigation)) check to discern the true nature of an illusion spell you cast, or makes a saving throw against an illusion spell you cast, you can use your reaction and expend 1 charge to impose disadvantage on the roll. *Source: Tasha's Cauldron of Everything p. 126*