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1. Caldera: The City of Ghosts by spacelattes

   Fandoms: Avatar: The Last Airbender  

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

   02 Nov 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Graphic Depictions Of Violence
   • Katara/Zuko (Avatar)
   • Katara (Avatar)
   • Zuko (Avatar)
   • Sokka (Avatar)
   • Suki (Avatar)
   • Toph Beifong
   • Aang (Avatar)
   • Azula (Avatar)
   • Ozai (Avatar)
   • Iroh (Avatar)
   • Mai (Avatar)
   • Yue (Avatar)
   • Badass Katara (Avatar)
   • Aged-Up Character(s)
   • Alternate Universe - Modern Setting
   • Angst with a Happy Ending
   • Rating May Change
   • Spiritbending & Spiritbenders (Avatar)
   • mentions of physical abuse
   • Protective Zuko (Avatar)
   • Zuko is an Awkward Turtleduck
   • this will have a happy ending
   • Mystery
   • Other Additional Tags to Be Added
   • Eventual Romance

   Summary

   Katara strikes a deal with a Spirit to help find out his unfinished business after he saves her from a demon. Easy, right? Only, Zuko isn't sure what his unfinished business is. Zuko's not even sure how he became a spirit. The longer that they get to know each other, the more Katara is uncertain if she can handle finding out.

   Language:

   English

   Words:

   146,101

   Chapters:

   21/?

   Comments:

   330

   Kudos:

   489

   Bookmarks:

   102

   Hits:

   13,136