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1. Fathoms Deep by itseudorab

   Fandoms: Harry Potter - J. K. Rowling  

   • Mature
   • No Archive Warnings Apply
   • F/M
   • Work in Progress

   15 Dec 2025

   Tags

   • No Archive Warnings Apply
   • Severus Snape/Original Female Character(s)
   • Severus Snape
   • Slow Burn
   • Original Character(s)
   • Magizoology (Harry Potter)
   • Canon Divergence - Post-Harry Potter and the Deathly Hallows

   Summary

   Summer, 1995. Britain is melting under a historic heat wave. The wizarding world is aflame with rumors that Voldemort has returned. And something is horribly wrong with Hogwarts’ Black Lake. Severus Snape has more pressing issues to busy himself with than worrying about a body of water — namely, his reignited status as a double agent and the start of another war— but he is forced to confront the lake, and the depths of his character, when Dumbledore hires a marine magizoologist to investigate what has gone wrong.

   Language:

   English

   Words:

   43,480

   Chapters:

   10/?

   Comments:

   26

   Kudos:

   38

   Bookmarks:

   6

   Hits:

   634