Crystal Chamber
From Multiversal Omnipedia
The Crystal Chamber was a room at the top of the Castle of the Crystal, where the Skeksis kept the fabled Dark Crystal floating above the castle's central shaft. Here was where they conducted the Ceremony of the Sun, by means of sunlight shone through the Crystal trough a triangular skylight in the ceiling. The Crystal Chamber was where the Skeksis gathered for the Great Conjunction, and were ultimately recombined with their counterparts, the Mystics.
