Lost hen found!

I lost one of my australorps this morning. I found her and she was setting not too far from the coop. Hiding. I chased her out and lo and behold she was setting on 10 eggs! I was wondering if these eggs would be any good. They all go in at night, so I'm guessing they all won't be good. She would have had to lay there at least 10 days right? How can I tell if they are any good or should I just not eat any of them?