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Sedenach was a planet, home to the Bismuth Mountains. The planet was destroyed by antimatter during the Anti-Monitor Crisis.[1]

History[]

Kara Zor-El and her parents would spend their solstices on Sedenach. At one point, Kara visited the Bismuth Mountains and got to see their crystal staircases.

Mon-El once took a girl to Sedenach, presumably for romantic reasons.[2]

Thomas Coville somehow found a sample of Sedenach dust on Earth, which was used by his acolytes to make a Worldkiller.[3]

Appearances[]

Supergirl[]

Season 2[]

Season 3[]

References[]