"And a musical ghost, at that," crowed Ferd, as they started down the stairs with the girls following cautiously and holding their candles over their heads.
"Say, don't make so much noise," cried Chet in a stage whisper. "You'll frighten his ghostship away. I wouldn't miss seeing a real ghost for anything you could offer me."
"In here, fellows, here's the piano," Ferd directed, and, their hearts in their mouths, the girls watched them go into the dark room.
"Ouch! hang that chair," they heard Ferd cry out. "Come on with those lights, girls. I'm ruining all the furniture."
Nervously the girls followed them in, throwing the light of the candles on the old piano, but, as far as they could see, nothing had been disturbed.
The ancient instrument stood as dignified and aloof as ever, and in the whole room not a chair was out of place.
"Nothing here," said Chet, looking disappointed. "Say, the girls promised us a regular show, fellows, and they haven't come across."
"What shall we do to 'em?" asked Teddy, looking almost equally disappointed.
"But we heard it," said Billie, shivering with excitement.
"It was just as if somebody had taken the back of his finger," Laura added, "and run it all the way down the keyboard from the top note of the treble to the last note of the bass."