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1. Thrill of the Chase by toadami

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

   • Explicit
   • Graphic Depictions Of Violence, Major Character Death
   • F/F
   • Work in Progress

   10 Jan 2026

   Tags

   • Graphic Depictions Of Violence
   • Major Character Death
   • Harrowhark Nonagesimus/Ianthe Tridentarius
   • Gideon Nav & Harrowhark Nonagesimus
   • Coronabeth Tridentarius & Ianthe Tridentarius
   • Harrowhark Nonagesimus
   • Gideon Nav
   • Ianthe Tridentarius
   • Canon-Typical Complex Power Dynamics
   • Arranged Marriage
   • Alternate Universe - Canon Divergence
   • Grief/Mourning
   • Unhealthy Coping Mechanisms
   • Dom/sub
   • Post-Traumatic Stress Disorder - PTSD
   • Nightmares
   • Light BDSM

   Summary

   The Reverend Parents bet the future of Ninth House on Harrowhark Nonagesimus without her consent. However, at Canaan House she's finally close to making up for her birth—she just has to ascend to Lyctorhood. As extra motivation, someone has offered another terrible option to save her house, should she fail.

   Language:

   English

   Words:

   106,361

   Chapters:

   31/34

   Comments:

   224

   Kudos:

   307

   Bookmarks:

   48

   Hits:

   8,584