A few years back we had an ice storm. Thirty bobwhite quails sat in the mailbox & froze for 2 days (until it was safe to travel a mile down the lane w/trees falling). I stuck them in the bator, half hearted tended them. Three days past their due date I pulled the plug, went to bed. About 2 am one of the cats refused to leave me alone. I finally got up, went into the kitchen finding Taffy (cat) sitting on the bator with 28 hatched quail. Nah, she didn't want to save them, she was mad she couldn't get in to eat them! So yup! I think you egg just might hatch!!
Let us know how it goes! I have 2 iffy ones in my bator right now, I had to hunt for them in the cold after the hawk took Erma last week *sniffle*.
KAT