Castle Grizzlestein

Castle Grizzlestein, also known as the Black Castle and Castle Black, is a dark moving castle where the Moon Bear King resides.

Appearance
A dark and gloomy medieval place made of stone and covered in vines. It's covered with spider webs and cracks, with many towers. It also has very large metal legs that allow it to move, with multiple large cannons for attacking.

History
Built by General Monkey, it served as a dark reflection of the White Castle, Castle Wax Wane. It was the place where the stolen souls of children were collected and turned into puppets, or Grubs, to serve the Moon Bear King. Vile Vines surrounded the castle to further its power and protect it from intruders (and escapees).

Locations

 * Tower of Tribulations
 * Prison Towers

Trivia

 * The "grizz" in Grizzlestein refers to the grizzly bear, a reference to the castle's ruler, the Moon Bear King.
 * In a blog post, Puppeteer's director, Gavin Moore, spelled it as "Gristlestein."