Possible Clues:

• Spooky
• Strange, odd
• Strange hold-up in river delta
• 'Well, that was unexpected'
• 'Keep Austin ___' (city slogan)
• 'Well, that's quite a coincidence ...'
• "That's odd ..."
• 'That's odd . . .'
• "Keep Austin ___" (Texas city's slogan)
• 'That's odd'