Jackie's Dictionary of All Things
(Wonderous Item, very rare, requires attunement)
This large tome is bound in red leather and lined with emeralds. Attunement requires reading it, which takes 56 hours over at least 7 days. Once attuned, a creature has proficiency with all Intelligence skills, and expertise in any it was already proficient in. Also, it learns any 3 languages.
Curse: Attunement to this item gives the creature a curse: all questions it asks will be perceived as mocking or sarcastic. Curse may be removed by Remove Curse or similar magic. This also breaks the attunement.
Created by the ancient Gnome wizard Jakie Jigglewrench, renowned for her wide knowledge and sarcastic attitude.