
thumb|upright=1.3|Kashchey the Immortal by Viktor Vasnetsov, 1848–1926 Koshchei (), also Kashchei (), often given the epithet "the Immortal", or "the Deathless" (), is an archetypal male antagonist in Russian folklore and mythology.
thumb|upright=1.3|Kashchey the Immortal by Viktor Vasnetsov, 1848–1926 Koshchei (), also Kashchei (), often given the epithet "the Immortal", or "the Deathless" (), is an archetypal male antagonist in Russian folklore and mythology.
The most common feature of tales involving Koshchei is a spell which prevents him from being killed. He hides "his death" inside nested objects to protect it. For example, his death may be hidden in a needle that is hidden inside an egg, the egg is in a duck, the duck is in a hare, the hare is in a chest, the chest is buried or chained up on the faraway mythical island of Buyan. Usually Koshchei takes the role of a malevolent rival figure, who competes for (or entraps) a male hero's love-interest.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).