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1. My lady is the sea by bone_gunge_lahar

   Fandoms: The Locked Tomb Series | Gideon the Ninth Series - Tamsyn Muir  

   • Explicit
   • No Archive Warnings Apply
   • F/F
   • Complete Work

   18 Mar 2026

   Tags

   • No Archive Warnings Apply
   • Gideon Nav/Harrowhark Nonagesimus
   • Gideon Nav
   • Harrowhark Nonagesimus
   • Palamedes Sextus
   • Camilla Hect
   • mermaid Harrow
   • fisherwoman Gideon
   • mermaid reproductive weirdness
   • Egg Laying
   • Egg bound
   • not a baby fic the eggs are unfertilized
   • Vaginal Fingering
   • Oral Sex
   • Cloacal Fingering
   • strap-on shaped like a shark fin
   • Harrow is a creepy little mermaid who collects human skeletons

   Summary

   Gideon finds a mermaid in trouble.

   Language:

   English

   Words:

   14,459

   Chapters:

   5/5

   Collections:

   1

   Comments:

   68

   Kudos:

   205

   Bookmarks:

   41

   Hits:

   2,977