Mattes' Great-Hall, also known as Mindbreaker's House, Ol' Chains, the Bindnet, the Lychweb, and to be known variously as the Core of Ymetros, Point 50, and the Deathless Abode is the exact center of both the Axle, and the Æther, serving as the physical seat of Calthoss the Shadow & the Shine, 10th, and later Landeles. This physical seat, called the Psychopomp Seat only exists between the World-Wheels, i.e outside of the Axle. The Great-Hall has two other physical locations: it exists within Mindbreaker's Cave beneath Mount Beles, where it serves as the Slayer's Hold; and at the Deathless Abode within the core of Planet Ymetros in Point 50 of the 50th Quadrant, the exact center of the universe between the two World-Wheels. Both physical incarnations exist due to laziness. Calthoss wanted a