Book of Knowledge

The Book of Knowledge is a non-tradeable item obtained from the Surprise Exam random. The Book of Knowledge can be used once to advance any skill by 15x its current level. For example, if a player has level 46 Agility and they use their Book of Knowledge on Agility, they will receive 690 Agility experience.

When the player successfully answers three of Mr. Mordaut's questions in a row, they are rewarded with the Book of Knowledge.