Related Clues:

• When the world ends
• Upset, sad and moody before final judgment
• Miserable, sad and moody way the world ends?
• It brings everything to an end, upsetting mood with talk about old Penny
• Time of final judgement
• Atmosphere turned, perhaps around date for last judgement
• Mad, sad and moody in World's End
• Last moment of the world
• Reckoning time
• Powerful Superman villain