egg; unknown stone

From time to time the Baba Yaga's chicken-leg hut is known to leave a stone egg on the forest floor. If a witch-marked girl, the seventh daughter of a seventh daughter, finds and keeps the egg, it will hatch into a firebird that will protect her for all her days. Anyone else who tries to steal the Baba Yaga's gift will hatch a cockatrice and be turned to stone.