Related Clues:

• 'I have an idea!'
• 'Now I remember!'
• 'I begin to see the truth!'
• ''Great idea!''
• Sleuth's outburst
• "I thought so!"
• Opposite of 'duh!'
• Sleuth's cry
• ''Finally!''
• Light-dawning remark
• "Gotcha!"
• 'Lookee here!'
• 'So that's what you're up to!'
• 'I caught you!'
• Cry of amused surprise