Related Clues:

• Deep Purple classic
• "No talking!"
• Peaceful silence
• "Button it!"
• Deep Purple "I thought I heard her calling my name now" song
• Sound in the stacks
• Quiet "Be quiet!"
• "Oh, be quiet!"
• 'Oh, be quiet!'
• 'You're in the library!'
• Common library sound
• Quiet "Quiet"
• Type of puppy?
• 'Lower your voice, please'
• ''Button it''