Sapphite
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Summary
There are seven Millennium Prize Problems.
Seven.
Only one has been solved, and Lena's determined to be the second person to solve one of them, or more specifically, the person to solve the P versus NP problem. A certified maths genius, she's spent ten years working on solving the problem, but to her frustration she hasn't been able to crack it.
Taking on a maths fellowship at the National City Institute of Mathematics, Lena begrudging enlists the help of another maths genius to help her solve the problem, but that's only the start of Lena's problems.
- Language:
- English
- Words:
- 45,244
- Chapters:
- 16/16
- Collections:
- 4
- Comments:
- 275
- Kudos:
- 2,235
- Bookmarks:
- 331
- Hits:
- 34,886
Bookmarked by Sapphite
17 Sep 2026
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Retirement Ended Up Super by Rhino (RhinoMouse)
Fandoms: Supergirl (TV 2015), Agents of S.H.I.E.L.D. (TV)
13 Dec 2024
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Daisy was tired of all the fighting, heartbreak, and being left alone when she was no longer useful. But as long as she was in her universe, there was no stopping. It’d never be allowed. So if she wanted out, it meant going somewhere that’d never heard of Daisy Johnson, Quake, or the Destroyer of Worlds. So a universe where there never was a Daisy Johnson. She wasn’t exactly expecting a world with a brand-new and shiny Superhero. One who clearly had no idea how to protect themselves from being chewed up and spat out.
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a kitten moth, no longer trapped by TygerTygerInBlackestNight for paintingcranes
Fandoms: Avatar: The Last Airbender (Cartoon 2005)
04 Nov 2025
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Aang apologizes to Katara for how he acted the night of the play, but Katara has something of her own to tell him.
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Andrea stared at the coin in her hand, trying to fight back the overwhelming nausea that kept calling for her to throw up a third time that night. Russell was… kind. Sweet. He didn’t deserve to be put at risk just for dating someone like her.
A murderer.
Andrea brushed back her hair, trying to push the thoughts from her mind. She could still hear it, the sharp pop of the governor’s neck as she twisted it. She could feel his last breath as it exited his body. Tom Harper was dead, and his blood was on her hands.
After years of believing that she had left Leviathan behind… they had called upon her. And now she knew that she would never escape. Perhaps they would not summon her often, but she knew she would never know peace again.
Breaking up with Russell was the easy part. Living with herself… was another thing entirely.
***
A rojarias fic, with background supercorp.
- Language:
- English
- Words:
- 9,272
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 44
- Kudos:
- 139
- Bookmarks:
- 21
- Hits:
- 1,907
Bookmarked by Sapphite
23 Feb 2026
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“You! You’re Supergirl! And you never told me!” Lena says through her teeth, but Kara just stares back at her. “What? No excuse?”
“I’m not Supergirl,” Kara responds, her voice just a whisper. “Why would you think that?”
Lena stares at her, looks into her eyes, and just sees the confusion. Kara looks so lost, and Lena feels horrible for causing that, but now she just wants answers.
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Whumptober '23 Day 21: Vows
Whumptober '24 Day 11: Loneliness
Whumptober '25 Day 28: BackstabbingSeries
- Part 21 of Whumptober 2023
- Part 11 of Whumptober 2024
- Part 4 of Whumptober Stories- Supergirl
- Part 28 of Whumptober 2025
- Language:
- English
- Words:
- 10,718
- Chapters:
- 7/7
- Collections:
- 3
- Comments:
- 63
- Kudos:
- 372
- Bookmarks:
- 69
- Hits:
- 7,705
Bookmarked by Sapphite
02 Jan 2026