Broken Sword is a Tarkuusan military outpost on the Skeleton Coast near the Sun Refuge. Built in Y9408*, about five centuries after the first arrival of the crusaders of Harinna, the fort consists of four massive concentric earthwork rings, with a maze of underground tunnels connecting subterranean chambers. None outside of Tarkuus' inner circle and trusted figures within the empire's military know the precise layout of the subterranean fortifications, as access to Broken Sword is heavily restricted. Very few intelligent undead are granted access to the outpost, and the vast number of mindless undead that ceaselessly carry out their maintenance and patrols cannot precisely share the secrets of the stronghold.
From the highest point in Harinna's Hold, the crusaders can see Broken Sword on the horizon, a constant reminder of what they fight against. The attacks they occasionally send against the fort are a minor annoyance to Tarkuus, which only maintains the outpost to keep an eye on the crusader state.