Description:

Storehouse of the Orb of Power & mystic secrets

Area:

Barren plain just on the edge of the Evergreen Forest

Exterior:

- Situated on a pedestal of bones shaped rocks
- Surrounded by a bottomless abyss

Interior:

- Portal Chamber
- Throne Room

Miscellaneous:

- A Jawbridge was used to cross the Abyss & enter the Castle
- Hall of Wisdom was concealed by the illusion of a helmeted skull
- Named in honor of King Grayskull, a legendary warrior
- Home of the Sorceress, whom was tasked with Guarding the Castle