The river water was dirty and full of all the town’s rubbish. “I am going back to the inn to sit by the fire,” Mr Blood said. “Come back inside when you are ready.” He walked away. Mary saw two men on the bridge. There was something strange about them. “Look, Edgar!” said Mary, “those two men over there on the bridge. They…” “They look exactly the same,” Edgar said, “how strange!” The two men looked like twins. They were just the same as each other in every way. The men had the same face, the same haircut. Even their clothes were a perfect match. They stood looking at each other in the middle of the bridge. Edgar could see one difference between the men, however. One man looked very ill and very unhappy. The other man had a nasty smile. The men stood there saying nothing. Then, as Edgar watched, he saw that bit-by-bit the unhappy man’s face changed. He stopped looking sad. Soon he looked quite calm and happy. That man stepped up onto the low wall at the side of the bridge.