KATH TWO DESCENDED TO THE TRANSIT LEVEL AT THE END OF THE block and took the tube around the ring to a district of midrise blocks full of stores, markets, kupols, restaurants, and theaters, and spent the day drifting around, looking at things, buying little except for small items of clothing and toiletries she imagined she might need on the next leg of her journey. Square meter for square meter, this was the finest shopping district in the human universe, drawing its stock from every habitat visited by the Eye, attracting the sophisticated and well-heeled natives of the Great Chain as well as tourists from whichever habitats were currently in reach.