A Slavic Legend of Immortality: Koschei, the Deathless
It is here where discrepancies in the mythical story appear. Koschei was not killed with the use of his egg according to Andrew Lang's text, thereby implying that since Ivan did not come by it, it must have been previously destroyed.
In Lang's and Afanasyev's versions, Koschei chased Ivan and Marya down unsuccessfully and was slain by either Ivan's sword or a sharp kick to the head by Ivan's steed, and the sorcerer's body was properly burned.
Regardless of the telling however, Koschei the Deathless was indeed considered dead by the end of every version, with Ivan and Marya Morevna living "happily ever after" and Ivan's relationship with his sisters restored.
Featured image: Illustration of Koshchey (Koshei) the Deathless, riding his magical steed. 1901. Public Domain
Afanasyev, Aleksandr. Russian Fairy Tales (Random House: NY, 2013.)
Lang, Andrew. The Red Fairy Book (Dover Publications: NY, 1966.)
Szyjewski, Andrzej. Slavic Religion (WAM: Kraków, 2003)
Willis, Roy G. World Mythology (BCA Publishing: United Kingdom, 1993.)
By Ryan Stone