A marvel of human ingenuity, the Crawling Fortress is a mobile Imperial Army base. Mainly stationed on the Timier River, the Fortress moves like a gigantic spider up and down stream. Using a top secret combination of magic and artifice, this moving town can cover eighty miles in a day, and usually carries about six hundred troops in various states of training. In extreme cases, the Fortress can carry up to fifteen hundred troops, but this turns every available space into cramped quarters. The spider-like legs are able to carry the weight of the entire base, but it doesn’t move as fast. Across fairly flat land, the Fortress can cover about thirty miles a day at top speed, which is only does in emergency situations. Structural damage can easily occur if this speed is kept for an extended period of time.