“By letter. It was thrust into my hand as I entered the theatre here.”

“May I see it?”

Mr. Mountain took a letter from his pocket, handing it to Chick, who, after reading it, passed it to Patsy. It read:

“Mr. M.: To-morrow at 5 P. M. Be at the entrance of the Park Avenue Hotel, prepared to do business, as I require. Make no mistake as to the amount. You will be met by one who will bring you to me. If you are accompanied by any one, or, if any one is concealed there to watch and follow, I shall know it, and if you play tricks the game will be up. Be prompt.

“The Brown Robin.”

“So it’s business to-morrow,” said Chick.

“It seems so,” replied Mr. Mountain. “I want to see Carter on this business; I meant to go to him after the theatre.”

“Don’t; let him go to you,” said Chick. “You will be seen and followed if you go. He will get to you unseen.”

“I suppose that is so,” said Mr. Mountain, thoughtfully. “You will inform him then?”

“Yes; I will take this letter to him.”

Chick was thoughtful a moment, then handed the letter back, saying: