The building was a stripped shell, an entire floor of warehouse conversion with perfectly identical arched windows along each wall and white painted support pillars every ten metres in each direction. The ceiling was drab grey, the original building blocks exposed and cross-laced with heavy ferrocrete load-bearers. The floor was raw concrete, perfectly poured. Hard light fell in through the windows, unsoftened by any drifting motes of dust. The air was crisp and cold.