The Warehouse in the Grey Reach District of Coia City is a secret, alternate dimension engineered by the mages of the House of High Magic. Originally established amid the turmoil of the Civil War, it was designed not merely as a means of banishment but as a carefully sealed vault to contain dangerous artifacts and creatures that could destabilize the city and even the broader continent. This enigmatic repository was created during desperate times when extra planar intrusions threatened the very fabric of existence, necessitating a solution that secured these threats away from the realm of the known.

Access to the Warehouse is strictly limited. Only a select few, chosen by the House of High Magic, are granted passage into its wintry, perpetually twilight landscapes. Explorers report hearing eerie echoes and whispers from the banished beings that linger within, cultivating an atmosphere steeped in mystery and foreboding. This reputation is further accentuated by the Warehouse's profound connection to an ancient magical explosion mishap tied to the House, cementing its place in the chilling saga of Coia City.

Over the years, the Warehouse has not only served its purpose as a containment space but has also emerged as a symbol of the House of High Magic’s relentless pursuit to protect the city. Guardians of its secrets continue to navigate its arcane corridors, intertwining its fate with that of Coia City’s enduring struggle against chaos and destruction.