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1. Shards of Therion by MyBrokenFantasy

   Fandoms: Supernatural (TV 2005)  

   • Explicit
   • Graphic Depictions Of Violence, Creator Chose Not To Use Archive Warnings
   • M/M
   • Work in Progress

   15 Jan 2026

   Tags

   • Graphic Depictions Of Violence
   • Creator Chose Not To Use Archive Warnings
   • Castiel/Dean Winchester
   • Dean Winchester
   • Sam Winchester
   • Castiel (Supernatural)
   • Charlie Bradbury
   • Jack Kline
   • Original Characters
   • Gun Violence
   • Body Horror
   • Near Death Experiences
   • Dimension Travel
   • Bottom Castiel/Top Dean Winchester
   • Post-Apocalypse
   • End of the World
   • Cosmic Horror
   • Multiverse / Alternate Realities
   • Possession
   • supernatural entities
   • Old Gods
   • Eldritch beings
   • Gods and Monsters
   • Biblical Horror
   • Reality Breaking
   • Existential Horror
   • Parasitic infection
   • Hive Creature
   • human sacrifices
   • Character Deaths
   • Hurt/Comfort
   • Self-Sacrifice
   • Desperation
   • Trauma
   • High Stakes
   • War Arc
   • Prophecy
   • Mythology
   • Ancient Artifacts
   • Eldritch Horror Adventure
   • Cosmic Scale Stakes
   • Slow Burn to Lovers
   • Mutual Pining
   • Love Confessions
   • First Kiss
   • Eventual Smut

   Summary

   Sam and Dean find peace in Heaven, but their rest is interrupted when Castiel arrives with alarming news: portals are appearing on Earth and unleashing strange creatures. Joined by Castiel and Charlie, they leave Heaven to investigate, uncovering a battle against ancient forces bent on ending all existence.

   Language:

   English

   Words:

   243,127

   Chapters:

   51/?

   Comments:

   38

   Kudos:

   80

   Bookmarks:

   26

   Hits:

   4,030