The other two laboratories Gideon had seen were caves. They were practical places to work and sleep and train and eat, homely at best, cheerless at worst, laboratories in the real sense of the word. This room was something else. It had been light and airy, once. The floors were made of varnished wood, and the walls were great whitewashed panels. The panels had been painted lovingly, a long time ago, with a sprawling expanse of fanciful things: white-skinned trees with pale purple blossoms trailing into orange pools, golden clouds thick with flying birds.