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1. Attack Dog by batling_out_of_hell

   Fandoms: DCU, Batman - All Media Types  

   • Mature
   • No Archive Warnings Apply
   • Gen
   • Complete Work

   07 Aug 2025

   Tags

   • No Archive Warnings Apply
   • Cassandra Cain
   • Bruce Wayne
   • Barbara Gordon
   • Dick Grayson
   • Tim Drake (DCU)
   • Merfolk AU
   • Alternate Universe - Fantasy
   • Suicide Attempt
   • Suicidal Thoughts
   • Human Trafficking
   • Fighting Ring
   • Dehumanization
   • Starvation
   • Cassandra Cain Joins the Batfamily Early

   Summary

   Cass runs away from David Cain and straight into Black Mask. Now, she's in an underground mer fighting ring, forced every night to fight for her keep for humans' entertainment.

   Series

   • Part 3 of Merfolk AU

   Language:

   English

   Words:

   2,918

   Chapters:

   1/1

   Comments:

   22

   Kudos:

   110

   Bookmarks:

   3

   Hits:

   856