"Good morning," he said hurriedly. "I have an engagement."
Mark felt that he was dismissed, and kept on his way. He hardly knew whether to be glad or sorry that his uncle's family was coming to New York. He did not care for Edgar's companionship, nor did he expect to get any of it, but he knew that his mother would like to meet her sister occasionally.
About the middle of the afternoon he found himself riding in a Fifth Avenue stage. The stage was tolerably full. Directly opposite Mark sat an old lady richly dressed, whose means were evidently large. Next to her sat a flashily dressed young man, on whose bosom glittered what might be a valuable diamond stud, conspicuous for its size. He had a diamond ring on his finger, and might easily be mistaken for a banker's son.
All at once Mark noticed some suspicious movements which led him to think that the young man might be quite different from what he appeared. A moment later he saw the young man's hand dive into the old lady's side pocket. Directly afterwards he rose and pulled the strap for the stage to stop. Mark realized that a robbery had taken place. He rose and placed himself between the young man and the door.
"Madam," he said to the old lady, "I think you have been robbed. Feel in your pockets and see."
The old lady, startled, followed Mark's advice.
"My pocketbook is gone!" she said nervously.
"Out of the way, boy!" cried the young man. "I have to get out here."
"Not yet," answered Mark firmly. "Give back the lady's pocketbook."
"Why, you insolent young rascal! What do you mean?"
"I mean just what I say."
"You have insulted me, and I will horsewhip you!" exclaimed the rogue in assumed virtuous indignation.
He seized Mark by the shoulder and was about to thrust him forcibly aside, when a stout, thick-set man rose and ranged himself by Mark's side.
"Young man," he said, "give back the pocketbook as the boy tells you."
"I have no pocketbook."
As he spoke he dexterously dropped it to the floor of the stage.
"Here's your pocketbook, ma'am," said a nurse girl, picking it up.
"Thank you!" responded the old lady, relieved.
"What did I tell you?" exclaimed the dude triumphantly. "Boy, you're too fresh! I am a young man of high family. It is most ridiculous to charge me with stealing."
"I saw you with your hand in the lady's pocket," said Mark calmly.
"It's a lie! But I ought not to be surprised. I know you now. You were sent to the Island last summer for stealing. I remember seeing you on trial at Jefferson Market police court."
Suspicious glances were directed at Mark, for most people are inclined to believe evil of their neighbors – but the stout man only laughed.
"That is too thin, my friend!" he said. "Of course your motive in bringing a charge against this boy is plain."
"Let me out, sir!" stormed the crook.
"Madam, do you wish to bring a charge against this man?"
"No, let him go. I've got my pocketbook back, and that's all I want."
The stout man turned aside, and the adventurer sprang out of the stage and dashed down Thirty-Ninth Street in the direction of Third Avenue.
"I'm very much obliged to you, boy," said the old lady. "Did you really see that young man take my pocketbook?"
"I saw him with his hand in your pocket."
"I'm so sorry. He seemed so nicely dressed, too. I thought he belonged to a rich family."
The stout man laughed.
"My dear madam," he said, "the young men connected with our best families don't dress as flashily as your late companion. He is probably a professional pickpocket. Did you have much money with you?"
"Over a hundred dollars. I was going down town to pay a bill."
"Then you ought to be much obliged to this boy for detecting the thief."
"I am," said the old lady earnestly. "Here, take this," she continued, and she drew a five-dollar bill from her pocketbook.
Mark hung back.
"No, thank you!" he said. "I don't want any pay for that."
"Give me your name and address, then."
Mark had a business card in his pocket, and wrote his name and address upon it.
"Give me your name and address too," said the gentleman who had proved so valuable an ally. "I may need your services some time."
"I don't think I have another card, sir."
"Then take one of mine."
Mark glanced at the card offered him.
Henry Swan
Watches, Diamonds, Jewelry
No. 185-1/2 Broadway
"Were that young man's diamonds bought at your store," asked Mark smiling.
"They were only paste. They might deceive a novice, but I saw through them at once. But I must bid you good morning. I have to make a call at the Fifth Avenue Hotel."
A few blocks farther on the old lady got out.
Mark assisted her to the street.