Related Clues:

• Yawning fissure
• "Heavens!"
• "Good grief!"
• 'This can't be good'
• Deep ravine
• 'I must've forgot ...!'
• Fathomless depth
• "Heaven forbid!"
• Yawning pit
• 'Egads!'
• The Grand Canyon, e.g.
• Expression of sudden disappointment
• Ravine
• Cry made with a head-slap
• "Here comes trouble!"