As the distance was considerable to the business part of the city, Luke boarded a car and rode downtown. It did not occur to him to open the envelope till he was half way to the end of his journey.

When he did so, he was agreeably surprised. The envelope contained a ten-dollar bill.

"Ten dollars! Hasn't Mrs. Merton made a mistake?" he said to himself. "She said it was a week's pay. But, of course, she wouldn't pay ten dollars for the little I am to do."

Luke decided that the extra sum was given him on account of the service he had already been fortunate enough to render the old lady.

Next to him sat rather a showily dressed woman, with keen, sharp eyes. She took notice of the bank-note which Luke drew from the envelope, and prepared to take advantage of the knowledge.

No sooner had Luke replaced the envelope in his pocket than this woman put her hand in hers, and, after a pretended search, exclaimed, in a loud voice: "There is a pickpocket in this car. I have been robbed!"

Of course, this statement aroused the attention of all the passengers.

"What have you lost, madam?" inquired an old gentleman.

"A ten-dollar bill," answered the woman.

"Was it in your pocketbook?"