Forbidden Sigils Manual
A treaty on arcane geometry. Unlocks a new perk for purchase in the development tree.

Manuals · Superior
No stat modifiers. This one is what it says it is.
What it teaches
Forbidden Sigils
Increases Witchcraft Ability Slots number.
Where to get it
- Point of interest containers
From the game's own loot tables and the inventories its characters carry. A percentage is the highest spawn chance recorded for this item; a row without one always carries it.