The Book of Deep Shadows is written in a half-forgotten dialect that seems to have been an ancestor of modern Bassan. Simple contact with it Informs you of all the subskills of Mastery; reading from it (as much as you can) Increases your Intelligence by 1 point for four days at a time, but also inspires 3 points of Stress.
There's powerful magic bound in this book, and though you can't read most of what it says, it seems like it still has ways of teaching you. That said, it's tied up in Mastery magic, and is most definitely not legal around the Academy--or anywhere else you know.
- Inform all Mastery subskills
- Read from The Book of Deep Shadows (Ability)