Castor and Pollux horse breaker and the boxer / Polydeuces, my brothers" ..." – Helen, "Iliad" 3.253–255), but in the "Odyssey" they are treated as alive even though "the corn-bearing earth holds them". The author describes them as "having honour equal to gods", living on alternate days because of the intervention of Zeus. In both the "Odyssey" and in Hesiod, they are described as the sons of Tyndareus and Leda. In Pindar, Pollux is the son of Zeus while Castor is the son of the mortal Tyndareus. The theme of ambiguous parentage is not unique to Castor and Pollux; similar characterisations appear in
Leda: The Fantastic Adventure of Yohko them. They meet a young girl named Yoni who explains that the floating castle, Garuba, nearby is ruled by Zell, an evil man using Leda's power for evil. He wishes to open a portal to the world of Noa to conquer it. Yoni leads her to a giant robot named the Armor of Leda that can transform into a ship called the Wings of Leda. Zell's floating towers attack and Yoni's giant robot, Rubber Star, is destroyed during the battle. Yoni and Yoko then fly to Zell's castle. They confront Zell, who erects a force field separating Yoko from her