This ancient, weathered book's cover is made out of different pieces of humanoid skin stitched together.  You can spend 1 day reading it.  If you do so, you choose between 3 paths: the Path of Might, the Path of Shadow, or the Path of Magic.  If you choose the Path of Might, your Strength and Constitution scores increase by 5, as does your maximum.  For the Path of Shadow, your Dexterity and Charisma scores increase by 5, as does your maximum.  If you choose the Path of Magic, your Intelligence and Wisdom scores increase by 5, as does your maximum.  However, the knowledge imparted to you by the book changes shows you things best left unseen.  You have disadvantage on Wisdom saving throws against being frightened, and take double damage from the spell Evard's Black Tentacles.  After you read it, the magic fades from the book, but returns in 666 years.

Notes: Bonus: Choose an Ability Score, Bonus: Choose an Ability Score, Disadvantage: Wisdom Saving Throws, This is based on the Daedric artifact from Skyrim. It originally granted a permanent 5 point boost to all related to one of the three major guardian constellations: the Warrior, the Mage, and the Thief., Communication, Buff, Debuff, Utility, Consumable, Cursed