Related Clues:

• Awe-full expression?
• 'Fascinating'
• Briefly near abandoning literary style? I am surprised
• 'Huh, never would've figured'
• Tag end?
• ___-whiz technology
• 'Well, fancy that!'
• 'Hmm'
• 'Who knew?'
• 'That's impressive!'
• Haw alternative
• Naive utterance
• 'That's unbelievable!'
• "Who'da thunk it!"
• Shout of surprise