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1. Blood-Coated Starlight by poetry_boyyy

   Fandoms: Iron Lung (2026), In Space With Markiplier (Web Series)  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • F/F, M/M
   • Work in Progress

   24 May 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • The Convict | Simon (Iron Lung)/Head Engineer Mark (In Space With Markiplier)
   • Ava (Iron Lung)/Celcionna "CC" F. Kelvina (In Space With Markiplier)
   • The Convict | Simon (Iron Lung)
   • Head Engineer Mark (In Space with Markiplier)
   • Celcionna "CC" F. Kelvina
   • Ava (Iron Lung)
   • Y/N | The Captain (In Space with Markiplier)
   • David (Iron Lung)
   • Trans The Convict | Simon (Iron Lung)
   • Trans Male Character
   • Simon has medical and religious trauma
   • Eden is a Death Cult (Iron Lung)
   • Medical Inaccuracies
   • Mute Y/N | The Captain (In Space With Markiplier)
   • Mark has ADHD
   • Simon really needs a hug but is also scared of physical contact but is also touch-starved
   • Eventual Trauma Recovery
   • Zero smut
   • i dont write that
   • THIS IS GONNA BE SO FLUFFY BECAUSE SIMON NEEDS IT
   • Ava was misguided
   • Ava also ends up on the Invincible
   • Mark and Celci are Siblings
   • Genderfluid Captain
   • Im pushing my Ava/Celci agenda because they're energies are so well matched up to not to
   • Ava Needs a Hug
   • Celci Is a Little Shit
   • But she's actually really nice it just takes some time
   • Slow Burn
   • David's here but in the back
   • he's a spectator
   • Ava/Celci is gonna be more background but they'll get their time
   • did I mention slow burn?
   • Post-Traumatic Stress Disorder - PTSD
   • Dissociation
   • Lots of Cursing
   • Things might be out of character
   • Engineering Inaccuracies
   • Hurt/Comfort
   • The Convict | Simon Lives (Iron Lung)
   • Past Sexual Abuse
   • Simon Is a softie but only with Mark and it takes time

   Summary

   Simon's been taken by the COI, dropped down into this... crimson hell. He's lost track of time, of everything. He's sure he should be dead. Maybe he is dead.

   A crackle of life from the beat-up speaker.

   Mark was stumbling through the day, how the hell had he not had a single cup of coffee today? Doing routine maintenance in the Communications room when a beep on the radar goes off.

   Language:

   English

   Words:

   11,448

   Chapters:

   5/?

   Comments:

   12

   Kudos:

   34

   Bookmarks:

   7

   Hits:

   410