- This version of Cynthia, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- 13 Appearances of Cynthia (Earth-Twelve)
- 1 Images featuring Cynthia (Earth-Twelve)
- Quotations by or about Cynthia (Earth-Twelve)
- Character Gallery: Cynthia (Earth-Twelve)
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