- "This whole room is an antimagic cage, designed to conceal this shrunken world, isolating it from the Spiral."
- ―Stallion Quartermane[src]
The Old One's Office, also known as the Forbidden Wing,[1] or the Sealed Room,[2] is a room within the Arcanum that was the office of the Old One. It later served as an antimagic cage, shielding the miniaturized Lemuria from the vision of Bartleby and isolating it from the Spiral. The Wizard, accompanied by Stallion Quartermane and Dasein, used a console in the office that reversed Lemuria's miniaturization and released it into the Spiral.[3]