"Now," said Merry, "we are ready to give you one of the most astonishing exhibitions on record. Before you, ladies and gentlemen, you behold a fly that actually thinks and reasons."
"Rats!"
Again that voice from the rear of the hall.
Frank looked keenly in that direction, hoping to discover the person who uttered the derisive cry.
"I will prove to you that I am not making an unfounded claim," the young magician asserted. "Will some person in the audience be kind enough to call one of the numbers marked on the mirror."
"Number one," cried a voice.
"Number one," repeated Frank. "Very well. Now, Solomon," addressing the fly, "will you please show the ladies and gentlemen where number one is located?"
Immediately the fly started and crawled across the face of the mirror to the upper left-hand corner, where it stopped on the number called.
All over the theater there was a flutter.
"Marvelous!" said one.