Caroline frequently turned round to look back towards Leicester Fields. Johann had suggested that she not; but it was difficult for a royal to accept such mundane suggestions. She was quite certain that they were being followed by a fellow riding on a black horse. But Monmouth Street curved steadily round to the left as it went, so she lost sight of that rider from time to time. For the same reason they could only see ahead for a certain distance, and every pace brought new complications into view.