Related Clues:

• Troubleshooter's word
• "I get it!"
• Op art viewer's cry, maybe
• ''Well, what's this?!''
• "What have we here!"
• "What have we here?"
• "Just as I suspected!"
• "I've got you now!"
• Climactic whodunit cry
• 'I knew it all along!'
• Palindromic sound of discovery
• ''Just as I thought!''
• 'That's brilliant!'
• "I've found you out at last!"
• "Now I know the answer!"