Caduceus is a continuation of the older Indo-European dragon-slayer motif. Wilhelm Heinrich Roscher (1913) pointed out that the serpent as an attribute of both Hermes and Asclepius is a variant of the "pre-historic semi-chthonic serpent hero known at Delphi as Python", who in classical mythology is slain by Apollo. One Greek myth of origin of the caduceus is part of the story of Tiresias, who found two snakes copulating and killed the female with his staff. Tiresias was immediately turned into a woman, and so remained until he was able to repeat the act with the male snake seven years later.
The Serpent (Once Upon a Time in Wonderland) The Serpent (Once Upon a Time in Wonderland) "The Serpent" is the fourth episode of the "Once Upon a Time" spin-off series "Once Upon a Time in Wonderland". The Knave of Hearts is kidnapped by the Red Queen (on behalf of Jafar) after saving him from Caterpillar's Collectors. Jafar wants him publicly beheaded to serve as an example of what happens to anyone who helps Alice. Alice befriends a collector named "Lizard" who helps Alice in her mission to rescue the Knave of Hearts. Meanwhile, the Red Queen is hesitant to kill the Knave since she's still in love with