During a Research Action, a player may choose 1 "CAST" Spell from their Spell Library to Scribe by placing it face-up in one of the three slots to the right side of the C.C. Board.
A player may only have 1 Scribed Spell per Capital City Level, and once a Spell is Scribed, it may never be discarded.
Scribed Spells can be Cast using a Cast Action and are not discarded but are rotated upside-down to indicate they are Exhausted.
During the Round End, players will rotate all of their Preparing and Exhausted Spells 90° counter-clockwise