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Depiction in the series
In Search for Atlantis, a young Siren appears in Mera's flashback as she talks about herself for Weaponomics class during her first day at Super Hero High School. In the flashback, Siren forbids Mera from going to Atlantis, saying that they would lock her away in their "hideous city" if they saw her swimming there on her own. When Mera asks if Atlantis really is that bad, she says it is worse and makes her promise that she will never go there. Mera finishes the story by saying that since Siren was evil and wanted to steal Aquaman's trident to take over the world, she teamed up with Super Hero High students to save the day, recalling the events of the film, Legends of Atlantis.