She shot open the window on the carriage’s left side and got a burqa -impression of several riders, all of whom abruptly went silent; which was so gratifying that she slid over to the right and shot that window open as well. She risked a peek out and forward, and saw a row of building-fronts ahead. This might have been any of London’s newer streets. But her eye was arrested by one building-front twice or thrice as broad as its neighbors.