The next room was astounding. At first he thought they had gone outside. For one, it was huge. He could see that they were in a vast space, like a hangar. The ceiling was far overhead. For another, the room had been made to look like a forest. Trees were everywhere, somehow surviving indoors. The ceiling was painted a sunny blue. The ground was carpeted in some kind of turf, bright green. Not far away from them a canal was cut in the floor that flowed like a river. It was a river of come. Jim could see it moving sluggishly, a kind of off-white color. It had to be a vast amount of the synthetic stuff flowing past them. "What the f**k?" Jim said. "Yerrss, the river takes some getting used to," Head mused. "It helps the mixture, somehow. I don't pretend to understand all the science. The

