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• A Good Boy's Guide to Murder by charmoza

  Fandoms: Harry Potter - J. K. Rowling, A Good Girl's Guide to Murder Series - Holly Jackson  

  • Mature
  • Creator Chose Not To Use Archive Warnings
  • M/M
  • Work in Progress

  07 Sep 2025

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Regulus Black/James Potter
  • Sirius Black/Remus Lupin
  • Minor or Background Relationship(s)
  • Regulus Black
  • Sirius Black
  • James Potter
  • Remus Lupin
  • Peter Pettigrew
  • Marauders (Harry Potter)
  • Lily Evans Potter
  • Barty Crouch Jr.
  • Evan Rosier
  • Pandora Lovegood
  • Marlene McKinnon
  • Mary Macdonald (Harry Potter)
  • Dorcas Meadowes
  • Inspired by A Good Girl's Guide to Murder - Holly Jackson
  • Minor Character Death
  • sirius black as andie bell
  • remus lupin as sal singh
  • Background Relationships
  • Author doesn't know how to properly tag this lol i tried
  • i didnt properly draft this
  • I Wrote This While Listening to Taylor Swift's Music
  • Angst
  • Angst with a Happy Ending
  • Hurt/Comfort
  • Regulus Black and Sirius Black Angst
  • regulus has a different surname
  • IT WAS FOR THE PLOT
  • Regulus Black Needs a Hug
  • Implied Sexual Content
  • Sexual Tension
  • No Underage Sex
  • No Smut
  • Regulus Black Speaks French
  • James Potter is So Whipped
  • remus is also dead
  • Warning: Walburga Black
  • Warning: Orion Black
  • black brothers dont know they are brothers
  • Other Ships Not Mentioned in Tags
  • remus is a potter
  • Not Beta Read
  • We Die Like Men
  • i used ONLY grammarly for the grammatical errors
  • but i know i still have them so
  • Sirius Black is dead
  • wolfstar will have their flashbacks
  • Murder Mystery
  • true crime enthusiast regulus

  Summary

  Sirius Black was killed, and everybody knew that the murderer was his boyfriend, Remus Potter.

  When Remus committed suicide, everyone acted like nothing happened.

  Only their families who grieved them remained. And Regulus.

  Because Regulus knew that Remus Potter was not, in fact, a murderer. And he was going to prove it. With his brother's help or not.

  or

  that agggtm jegulus au nobody asked for but pinterest showed me a pin with ravi and james so here we are

  Language:

  English

  Words:

  7,880

  Chapters:

  5/35

  Comments:

  63

  Kudos:

  121

  Bookmarks:

  26

  Hits:

  1,985