Eternium is an interdimensional element searched for by Harrison Nash Wells across the multiverse.


In 2019, Harrison Nash Wells traveled to Earth-1 in search of eternium. He broke into McCulloch Technologies attempting to find some. The following day, he was met by Iris West-Allen and Cisco Ramon, who'd tracked him down. He quickly confronted Cisco, but detected it around Iris. After their confrontation, Wells located some eternium particles in a manhole in the same location.[1]

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The Flash

Season 6

Behind the scenes

  • In the DC comics, eternium are shards composed of material cast from the Rock of Eternity, which was the lair of the wizard Shazam. Being near this material has the effect of removing the powers of Shazam.


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