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1. one grain of grace by underoriginal

   Fandoms: David Szymanski's Iron Lung - All Media Types, Andy Weir's Project Hail Mary - All Media Types  

   • Mature
   • Graphic Depictions Of Violence
   • Gen, M/M
   • Work in Progress

   12 Sep 2026

   Tags

   • Graphic Depictions Of Violence
   • The Convict | Simon (Iron Lung)/Ryland Grace
   • The Convict | Simon (Iron Lung) & Ryland Grace
   • The Convict | Simon (Iron Lung) & Original Eridian Characters (Project Hail Mary)
   • Ryland Grace & Rocky
   • Ryland Grace/Rocky
   • Ryland Grace & Eva Stratt
   • Ava (Iron Lung)/Eva Stratt
   • Ava (Iron Lung) & Eva Stratt
   • The Convict | Simon (Iron Lung) & Rocky (Project Hail Mary)
   • The Convict | Simon (Iron Lung)
   • Original Eridian Characters (Project Hail Mary)
   • Ava (Iron Lung)
   • David (Iron Lung)
   • Rocky (Project Hail Mary)
   • Eva Stratt
   • The Blood Eel (Iron Lung)
   • Alternate Universe - Canon Divergence
   • Post-Canon Fix-It
   • Slow Burn
   • Amputee The Convict | Simon (Iron Lung)
   • Language Barrier
   • Canon-Typical Blood (Iron Lung)
   • Planet Erid (Project Hail Mary)
   • C.O.I. | Consolidation of Iron (Iron Lung)
   • Blood Oceans (Iron Lung)
   • Cosmic Horror Can See You vs guy who doesn't know what eyes are
   • excessive meditation on ethics and redemption and forgiveness
   • The Convict | Simon Lives (Iron Lung)
   • POV The Convict | Simon (Iron Lung)
   • POV Ava (Iron Lung)
   • Eridian Language & Grammar (Project Hail Mary)
   • Body Horror
   • POV Ryland Grace
   • Eva Stratt Goes to Space
   • Ambiguous Ryland Grace and Rocky Relationship
   • Codependent Ryland Grace and Rocky
   • Eridian Culture & Customs (Project Hail Mary)
   • Ryland Grace Speaks Eridian
   • I Love Eva Stratt
   • Ryland Grace is a Mess
   • Old Woman Eva Stratt
   • Dubious Consent
   • Unhealthy Relationships
   • Power Imbalance
   • Ryland Grace is Bad at Feelings
   • The Convict | Simon Has Trust Issues (Iron Lung)
   • Consent Issues
   • Touch-Starved Ryland Grace
   • Touch-Starved The Convict | Simon (Iron Lung)
   • Ryland Grace Has Memory Issues

   Summary

   Trapped on the bottom of a blood ocean between a researcher who wants to get him killed and a mysterious sea monster who also wants to get him killed, Simon finds a third option in an otherworldy music.

   Meanwhile, Ava is having the weirdest day of her life and Grace, expecting a care package from Earth, finds someone else entirely.

   Language:

   English

   Words:

   33,366

   Chapters:

   6/?

   Comments:

   53

   Kudos:

   113

   Bookmarks:

   31

   Hits:

   1,381