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1. A Mistake on Absolutely No One's Part by Purple4275

   Fandoms: DCU, Batman - All Media Types, Batman (Comics), Justice League - All Media Types  

   • Not Rated
   • Creator Chose Not To Use Archive Warnings, No Archive Warnings Apply
   • F/F, F/M, M/M
   • Work in Progress

   26 Sep 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • No Archive Warnings Apply
   • Stephanie Brown/Cassandra Cain
   • Tim Drake/Kon-El | Conner Kent
   • Roy Harper/Jason Todd
   • Dick Grayson/Wally West
   • all relationships except timkon are kinda just implied
   • Justice League (DCU)
   • Bruce Wayne
   • Dick Grayson
   • Cassandra Cain
   • Jason Todd
   • Stephanie Brown
   • Tim Drake (DCU)
   • Duke Thomas
   • Damian Wayne
   • Barbara Gordon
   • Diana (Wonder Woman)
   • Clark Kent
   • Arthur Curry (DCU)
   • Oliver Queen
   • J'onn J'onzz
   • Hal Jordan (Green Lantern)
   • Barry Allen
   • Batfamily Meets the Justice League (DCU)
   • Batfamily (DCU)
   • Batfamily Shenanigans (DCU)
   • Cryptid Batfamily (DCU)
   • not actually but they are terrifyingly competent
   • Out of Character
   • Crack
   • Fluff and Crack
   • Justice League Doesn't Know Bruce Wayne is Batman
   • Secret Identity
   • Dick Grayson is Nightwing
   • Dick Grayson is a Menace
   • Cassandra Cain is Black Bat
   • Cassandra Cain is a Menace
   • Jason Todd is Red Hood
   • everyone in this family is a goddamn menace
   • Stephanie Brown is Spoiler
   • Tim Drake is Red Robin (DCU)
   • Duke Thomas is Signal
   • Duke Thomas Being a Little Shit
   • because he deserves to
   • Damian Wayne is Robin
   • POV Multiple
   • Tired Bruce Wayne
   • bruce: im completely fed up with my friends right now and too done to stop you so go nuts
   • bats: say less
   • Team Bonding
   • The Watchtower (DCU)
   • Might add more tags
   • Excessive Usage of Glitter

   Summary

   Honestly and truly, Batman didn’t know what made him say it.

   "My children could each take you down, solo, in your home base, without even trying.”

   <()><()><()>

   AKA: The Justice League has never met most of Batman's kids, and they were not even aware of a good portion of them. What better way to get acquainted with them than by accepting a "training exercise" challenge, in which they have to defend the Watchtower against them for a whole week? How hard could it be, anyway?

   (This was a mistake. This was a terrible, horrible, unforgiveable mistake.)

   Language:

   English

   Words:

   6,541

   Chapters:

   2/9

   Comments:

   73

   Kudos:

   644

   Bookmarks:

   177

   Hits:

   3,743