Occult grimoire

''“Words have a force far beyond that of ink stains on pages or spoken sounds... Whether written or spoken, language found in forbidden books can warp space-time and tear the fabric of reality.”'' ― Daniel Harms, The Necronomicon Files: The Truth Behind Lovecraft's Legend In couple of days in your game, a colonist should examine a strange tree/obelisk and begin writing strange symbols. If you let them, they will suffer a big sanity loss and complete the occult grimoire.

The occult grimoire is used in the forbidden knowledge center to access all occult research. Your colony can only create one occult grimoire but trade caravans or trade ships can sell it if you were to ever lose yours.