Sykes stopped the machine, turned, and glared at Roger. "Do you deny that that is your voice?"
Roger shook his head. "It's my voice all right but—"
"And do you deny that last night, before we left, it was decided that my explanation would be used?"
Roger's face reddened. "No, sir," he said tightly.
"Then how do you explain that your voice with your explanation is now on the master spool?" screamed Sykes.
"I—I—can't explain it, sir," said Roger, fighting to control his temper.
"I can!" snapped Sykes. "You sneaked back in here last night and substituted your original recording—the one I threw out!"
"But he couldn't have done that, Professor," interjected Tom. "He was asleep all night!"
"Were you awake all night, Corbett?" asked Sykes coldly.
"No, sir," replied Tom.