Fics like “The One Where Voldemort receives a Howler”

In the Valley of the Shadow by peglinds (Naruto, Harry Potter - J. K. Rowling)

The Nameless Professor by orphan_account (Fullmetal Alchemist: Brotherhood & Manga, Fullmetal Alchemist - All Media Types, more)

Three's Family by darkbluedark (Harry Potter - J. K. Rowling)

Scram by zathara001 (Harry Potter - J. K. Rowling, NCIS)

Remus Lupin Grows A Spine by MurderOnMyMind (Harry Potter - J. K. Rowling)

Cousin Harry by Nicnac (Harry Potter - J. K. Rowling)

Karma is a Four Letter Word by pagination (僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia, Harry Potter - J. K. Rowling)

Byzantine by LaoraRyn (Fullmetal Alchemist - All Media Types, Harry Potter - J. K. Rowling)

Spellist by esama (Harry Potter - J. K. Rowling, The Avengers (Marvel Movies))

neither red nor gold by dirgewithoutmusic (Harry Potter - J. K. Rowling)

Hagrid Ruins Everything by BrilliantLady (Harry Potter - J. K. Rowling)

punch-drunk fingerprints by tamerofdarkstars (Harry Potter - J. K. Rowling)

disguised as something else by aloneintherain (Harry Potter - J. K. Rowling)

Snake King by Zirakinbar (Harry Potter - J. K. Rowling, Naruto)

The Importance of the Silent E by pagination (Harry Potter - J. K. Rowling, Final Fantasy VII)

Serpent Speakers by zathara001 (Aquaman (2018), Harry Potter - J. K. Rowling)

It's short, it's simple, it's crystal clear by asterismal (Harry Potter - J. K. Rowling)

Boss Baby by Fairygirl34 (Harry Potter - J. K. Rowling)

Fics like The One Where Voldemort receives a Howler