A decommissioned hyperscale data center complex occupying twelve city blocks in the city's eastern industrial fringe, Thornfield was once the primary data infrastructure backbone for four merged corporate entities before a combination of technological obsolescence and a catastrophic cooling failure rendered it economically unviable in 2167. The buildings were sealed rather than demolished — the cost of safely removing the legacy hardware and the toxic materials used in its cooling systems exceeded the land's redevelopment value. What remained was 1.4 million square meters of sealed server halls, cooling infrastructure, subterranean cable runs, and administrative facilities, slowly being reclaimed by entropy.