Related Clues:

• Zero hour
• Involuntary jerk
• Step one
• Proctor's instruction
• Jump into
• React to a ghost sighting
• False __
• 'Go' square in Monopoly, e.g.
• Pierce the air
• Begin work on
• Shrill cry or scream
• Short piercing scream
• Sharp piercing cry
• Jump suddenly
• A shrill scream