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1. Thirteen Years by Chicknyx

   Fandoms: Project Hail Mary - Andy Weir, Project Hail Mary (2026), James Cameron's Avatar - All Media Types  

   • Mature
   • Creator Chose Not To Use Archive Warnings, Major Character Death
   • Multi
   • Work in Progress

   20 Jun 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Major Character Death
   • Ryland Grace & Rocky
   • Adrian/Ryland Grace/Rocky
   • Adrian/Rocky (Project Hail Mary)
   • Adrian/Ryland Grace
   • Ryland Grace
   • Rocky (Project Hail Mary)
   • Adrian (Project Hail Mary)
   • Ryland Grace's Eridian Students
   • Original Eridian Characters (Project Hail Mary)
   • Aging
   • Science Experiments
   • Dubious Science
   • Angst and Hurt/Comfort
   • Hermaphrodites
   • No beta we die like Antarctica
   • Avatar!AU
   • Body Modification
   • Adrian Rocky big science
   • I did too much math for this
   • Eventual Smut
   • Eventual Romance
   • happy ending question mark
   • POV First Person
   • Human Rocky (Project Hail Mary) Looks Like James Ortiz
   • Human Rocky (Project Hail Mary)
   • Human Adrian (Project Hail Mary)

   Summary

   Several years after choosing to live the rest of his life out with Rocky and Adrian, Ryland Grace's body is quietly failing under the brutal 2.12G gravity of Erid. Desperate to bridge the physical divide before Grace's time runs out, Rocky and Adrian misinterpret an old digital file of Avatar as a historical fact and secretly engineer life-like flesh and blood human "vessels" for themselves, but the sensory overload of piloting a human body changes everything Rocky understands about humans.

   And how he sees Grace.

   Language:

   English

   Words:

   13,916

   Chapters:

   5/?

   Comments:

   108

   Kudos:

   629

   Bookmarks:

   109

   Hits:

   5,016