Related Clues:

• Reaction of shock
• [I'm shocked!]
• Highest-ranking
• [Horrors!]
• Inhalation
• Display shock
• A as in Archimedes
• [You don't mean …!]
• First of a series
• Pack leader
• Indicate shock
• Horror reaction
• [It can't be!]
• Leader of the pack?
• ___ Centauri