An underground facility that extends throughout Las Noches and is the Exequias' base of operations. There are no entrances toward the core and orders are sent directly to the Leader via Aizen's ways; which for the most part is unknown. Literally means, 'Decapitation Fields', he facility is where the rebels and deserters/traitors to Aizen's will are brought and punished if they are not killed as they are retrieved. Hollows who resist Aizen are also imprisoned in their underground containment area.