Rubeus' Castle

Rubeus' Castle was originally called the Castle of Light, and was commissioned by The Six to be built by the Grandeans. It is located on the east end of Mount Grande, protected on the south-east by a sheer cliff face, the west by a precarious ledge that led back to the city, and the north by mountainous terrain in the middle of which is a path that leads to a volcano. It was originally a castle of white and light brown stone and marble, but Rubeus changed its appearance completely during the Great Purge, and proclaimed the castle as his own.

These are some of the descriptions of onlookers:

"It was made of dark ironstone with jagged iron spikes sticking out of the merlons of each crenellated embattlement.  Red flames spurted out from little holes in the walls at random times, creating an illusion of a massive fire-breathing beast."

"Diabolical flames spewed forth obediently from their stony demonic heads attached to the walls."

"It had two large doors made of solid oak, with large brass knobs arranged in rows from top to bottom.  The cast iron handles of the doors were fashioned into some grotesque head of some demonic creature. The once bright and cheerful reception area was now shrouded in poor light, as all the skylights in the towers were closed.  Torches burned along the walls and through the mouths of various demonic iron heads attached to the walls.  Grisly statues with oddly misshapen limbs adorned the reception, making it an unwelcome and foreboding place."

The castle was the location of the siege at the end of trilogy, after which the way had to be cleared for the Wizards of Light to make their way to battle the entity.