Sorceria

Sorceria otherwise known as Cursestone Castle is a massive fortress design to be one of the greatest prisons in the world. Because it was built by Ellcria and is used primarily to hold magic users, the very bricks that make up the castle are made from an incredibly rare material that absorbs magic. Because of this, the interior of the castle is primarily stone, with things like metal or wood being only found in the guard's areas. All cells are designed like 15 ft deep pits with stone grate coverings. This allows the guards to interact with the prisoners or deliver food without the use of things like metal hinges or physical contact that are susceptible or neccessary for magic