KoscheiTheDeathless is an evil wizard from Russian fairytale. He kept his soul not in his body, but hidden in a duck's egg; he could thus not be killed in the normal way, but could be killed by destroying the egg. Koschei, or things named after him, make appearances in: - 'The Firebird', a ballet by Igor Stravinsky - JamesBranchCabell's Poictesme books (where he's also the creator of the universe) - 'AColderWar', where the name is a codename for GreatCthulhu - TheSandman, somewhere - 'MondayBeginsOnSaturday', by TheStrugatskiiBrothers, where Koschei is the name given to an immortal monster held in the Academy of Sciences Institute of Thamaturgy and Advanced Magic - DoctorWho: The Dark Path by David A. Mc__Intee, where Koschei is the given name of the Time Lord who will eventually turn out to be the Master.