My Undertale/Deltarune au + crossovers

Series Metadata

Listing Series

• Mother knows best/Mockingbird by Salarue

  Fandoms: Undertale (Video Game), Horrid Henry (Cartoon)  

  • Not Rated
  • Creator Chose Not To Use Archive Warnings
  • M/M
  • Complete Work

  28 Sep 2026

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Horrid Henry/Rude Ralph (Horrid Henry)
  • Horrid Henry & Mum (Horrid Henry)
  • Horrid Henry & Perfect Peter (Horrid Henry)
  • Dad | Simon & Horrid Henry (Horrid Henry)
  • Horrid Henry (Horrid Henry)
  • Perfect Peter (Horrid Henry)
  • Mum (Horrid Henry)
  • Dad | Simon (Horrid Henry)
  • Bravery Soul - Freeform
  • Trans Horrid Henry (Horrid Henry)
  • Good Sibling Perfect Peter (Horrid Henry)
  • bad parent Fuming Francesca
  • Good parent Silly Simon
  • Songfic
  • Fluff and Angst
  • Transphobia
  • Child Abuse
  • Horrid Henry Is Not Horrid (Horrid Henry)

  Summary

  Henry and mum were arguing while Simon and Peter were watching, who's really the problem of the family if you always blame the scapegoat?

  Series

  • Part 1 of My Undertale/Deltarune au + crossovers

  Language:

  English

  Words:

  1,410

  Chapters:

  1/1

  Hits:

  26