Key to Knowledge
General Properties
ClassificationPlants, Animal Products, Food and Drink
Creature Products
Creature Products
Pickupable✓
Stackable✗
Trade Properties
Marketable✓
ValueNegotiable
Sold for(not bought by NPCs)
Bought for(not sold by NPCs)
Field Properties
Blocking✗
Utility Properties
Usable✓
Other Properties
Version11.02.4128
December 6, 2016
Winter Update 2016
December 6, 2016
Winter Update 2016
Notes
This is one of the two items required for the Forbidden Knowledge achievement.
If you have already eaten a 
Forbidden Fruit, then upon using the Key to Knowledge on the 
Forbidden Tome, both of which will be consumed, you will receive the following message along with the Forbidden Knowledge achievement: You gained a tremendous amount of knowledge.
Trade Details
Buy From
No NPC sells this item.
Sell To
No NPC buys this item.
Dropped By
1