There were many people outside the theatre. Everyone was meeting friends and going in to see the play. We waited. Suddenly a small dark man appeared. 'Are you Miss Morstand and her friends?' he asked. 'Yes,' she said. 'You must promise me that these men are not policemen.'said the stranger. 'They are not policemen,'replied Miss Morstan. 'Then come with me,'said the man. We passed through so many streets that I was very soon lost. I had no idea where we were going. I was feeling nervous and Miss Morstan's face looked white. Sherlock Holmes was calm. At last we stopped. We were outside a house in a dark quiet street. It had only one light in the kitchen window. There were no lights in any of the other houses in the street.