DND worlds and campaigns
Tome of the Stilled Tongue
you must be able to cast at least one spell from the cleric, mage, or druid list
Use this tome as a spellbook and can cast one spell per day you have written in the book without using an action and without having to speak or gesture, but any round you’ve used this property you cannot use your action to cast a spell
leather tome with a desiccated tongue nailed to the front cover.