“At nine, first, and then at ten,” was the answer, and Larry was at once struck with the answer. The singer came on at ten, and ten was the numeral the big man had signaled to the others. What could it mean? Larry wondered.

“Very good,” answered the foreigner, as he turned aside, and went out into the lobby, with a hasty glance toward the two in the rear seats. Larry saw them both nod their heads.

“Well, I don’t know that it concerns me,” mused the young reporter, as he returned to his seat. “It looks rather odd, but I guess I’ve got so that I’m looking for mysteries in everything. I’ve got to get out of the habit.”

He looked at the program, after handing Molly one, and noted that the cause for the long wait between the two appearances of the singer was because of a heavy orchestral number coming in between her first and second selections. After that she was to sing several songs in succession.

“I’m going to watch when she comes on at ten,” said Larry to himself.

The concert soon began, with an overture, and Larry found himself enjoying it, even though he knew little about classical harmony. Molly was in raptures, for she had a natural taste for music that Larry lacked, and she had taken a number of piano lessons.

“It’s grand!” she whispered to him.

Madame Androletti came on for her first number, being loudly applauded. Larry made some notes, that he might give Mr. Rosberg an intelligent account of the affair, and then gave himself up to the rapture of the music.

The orchestral number followed, and then, as the hour of ten approached, Larry found himself wondering what would happen. The musicians tuned their instruments for what was to be one of the chief vocal numbers, and there was a hush of expectancy.

The curtains and draperies parted and Madame Androletti came on again, bowing with pleasure at the applause. Larry found himself watching her curiously. Then he turned and cast a hasty glance to where the two strange men had been seated. They had left the hall.