C211 A fossil egg

Was it a stone or an egg?

No one could explain it clearly!

Fei Yan laughed bitterly: "Although I don't have any advanced instruments to detect isotopes, if I'm not wrong, this should be a fossil egg!"

Her Majesty asked, "What kind of egg is a fossil egg?"

Fei Yan said: "Fossil egg, to be exact, it is an egg, after going through a lot … In a year, he will be turned into a stone! "

The empress