Adrenaline Theory (Invincible)
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I Don't Know What I Can Save You From by DitchLilies
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
05 Oct 2025
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Summary
Life for William has been nothing but a disaster ever since his childhood friend and old crush Mark Grayson became Invincible. Turns out almost being murdered and stuffed inside a robot body has some negative effects on a guy's mental health. His only reward for surviving was a GDA non-disclosure agreement and an anxiety prescription.
To top it all off, his boyfriend just broke up with him and his best friend is nowhere to be found. William feels forgotten, left behind to deal with everything alone.
Mark is trying his best. Still shell-shocked after finding out his murderous father is alive, banged a bug, and had another kid. Between being a superhero and now a big brother, he doesn't notice that his best friend is being targeted by someone determined to discover Invincible’s secret identity, no matter the cost.