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1. Know That All My Love Will Be Your Breath by LiterallyLeonardo

   Fandoms: Supernatural (TV 2005)  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • M/M
   • Complete Work

   01 Aug 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Castiel/Dean Winchester
   • Jessica Moore/Sam Winchester
   • Dean Winchester
   • Castiel (Supernatural)
   • Sam Winchester
   • Jessica Moore (Supernatural)
   • Bobby Singer (Supernatural)
   • Gabriel (Supernatural)
   • Lucifer (Supernatural)
   • Jo Harvelle
   • POV Dean Winchester
   • POV Third Person
   • Alternate Universe - College/University
   • Fluff and Crack
   • Angst
   • Crack Treated Seriously
   • this fic is just a silly one but can have serious topics
   • Cults
   • Religious Cults
   • Castiel was Raised in a Cult (Supernatural)
   • Smart Dean Winchester
   • Mechanical Engineer Dean Winchester
   • John Winchester's A+ Parenting
   • Sam Winchester is So Done
   • Sassy Castiel (Supernatural)
   • Socially Awkward Castiel (Supernatural)
   • Dean Winchester Has Abandonment Issues
   • Dean Winchester Has Self-Esteem Issues
   • Human Castiel (Supernatural)
   • Dean Winchester Has Anger Issues
   • Fluff and Angst
   • I Wrote This While Listening to The Crane Wives' Music
   • Implied/Referenced Child Abuse
   • Castiel Has a Religious Family (Supernatural)
   • Castiel Has Religious Trauma (Supernatural)
   • Implied/Referenced Alcohol Abuse/Alcoholism
   • Implied/Referenced Drug Addiction
   • Touch-Starved Dean Winchester
   • Autistic Castiel (Supernatural)

   Summary

   A partner project is the worst in college, but making it more complicated, Dean is stuck with a weird man with the name Castiel. After an awkward start, Dean decides they're going to study a cult called The Fallen, a group of people believing that when Angels join on Earth, they will pick them as vessels.

   As the quarter goes on, Dean learns more about why Bobby chose to hide him and Sam from the cult hunting life and how to see Castiel as something more than the weird, awkward man he met in the cafe.

   Title is after Canary in a Coal Mine by The Crane Wives

   Series

   • Part 1 of The Fallen

   Language:

   English

   Words:

   72,669

   Chapters:

   12/12

   Comments:

   19

   Kudos:

   42

   Bookmarks:

   14

   Hits:

   841