“No, I’m sure no one was in the hall, Penny.”
“I’m as certain as anything that this room has a secret entrance. Give me your flashlight and we’ll see what we can discover.”
“Not tonight,” Rosanna shivered, pulling her friend toward the door. “We can come back in the morning.”
“The room may be locked again then.”
“That’s so.”
“Let’s take advantage of the opportunity while we have it.”
Rosanna handed over the flashlight and together they crossed the room to the big organ. They inspected it with interest and Penny ran her fingers lightly over the keys. However, no sound came forth.
“That’s queer,” Rosanna whispered.
“I think someone has to pump air,” Penny said. “It’s probably shut off.”
She next turned her attention to the walls in the immediate vicinity of the organ. She could locate no hidden panel although in one place it seemed to her that when she rapped on a certain sector it emitted a hollow sound.