Butterfly Effect FanFiction

The New Timeline Adventures

The New Timeline Adventures

F/F
F/M
Gen
M/M
G
Updated
11.04.2025
Fandom
Descendants (Disney Movies)
Characters
Chloe Charming/Red (Disney: Descendants), Doug/Evie (Disney: Descendants), Chloe Charming (Disney), Red (Disney: Descendants), Audrey Rose (Disney), Uma (Disney), Harry Hook, Haden (OC)
Tags
Alternate Universe - Canon Divergence Original Character(s) Time Travel Best Friends Butterfly Effect Consequences
Red and Chloe succeeded, they changed the past and saved Auradon from The Queen of Hearts.However a kinder Queen of Hearts isnt the only change they made.Changing history has... Consequences.From a new King of Auradon to relationships they swore they...
Dog days

Dog days

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling Grimm (TV)
Characters
Original Characters, Harry Potter, Nick Burkhardt, Hank Griffin, Sean Renard, Holly Clark
Tags
Alternate Universe - Canon Divergence Rating May Change Pre-Canon Canon-Typical Violence Other Additional Tags to Be Added Tags May Change Violence Aftermath of Violence Tags Are Hard I Don't Even Know Magically Powerful Harry Potter Crossover
Harry knows exactly who he won’t be. A martyr. So Harry fights. He trains, and learns by observing people. It helps that he can understand humans. He is very sneaky and great at playing dumb.But to his very core Harry is helpful and kind, which somet...
Dreams of strangers (but not really)

Dreams of strangers (but not really)

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Hermione Granger
Tags
Sad Sort Of How Do I Tag My First Work in This Fandom Butterfly Effect Mentioned Harry Potter
Hermione remembers
Ginny Weasley and the Chamber of Secrets

Ginny Weasley and the Chamber of Secrets

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Characters, Harry Potter, Lily Evans Potter, Ron Weasley, Hermione Granger, Lucius Malfoy, Ginny Weasley, Colin Creevey, Bill Weasley, Fred Weasley, George Weasley, Albus Dumbledore,
Tags
Alternate Universe - Canon Divergence Alternate Universe Mystery Adventure Hogwarts First Year Butterfly Effect Canon Era Hogwarts Era POV Ginny Weasley Harry Potter is Not the Boy-Who-Lived Evil Lucius Malfoy 1990s
"The one with the power to vanquish the Dark Lord approaches... born to those who had conceived six sons, born to subvert the myth of the seventh son's powers... and the Dark Lord will mark her as his equal, but she will have power the Dark Lord know...
One Hell of a Summer and other unusual circumstances

One Hell of a Summer and other unusual circumstances

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Characters, Harry Potter, Remus Lupin, Sirius Black, Minerva McGonagall, Severus Snape, Hermione Granger, Ginny Weasley, Neville Longbottom, Alastor "Mad-Eye" Moody, Tom Riddle | Voldemort, Molly Weasley,
Tags
Alternate Universe - Canon Divergence Implied/Referenced Child Abuse Pureblood Culture (Harry Potter) Butterfly Effect Manipulative Albus Dumbledore Mentor Severus Snape Book 4: Harry Potter and the Goblet of Fire Book 5: Harry Potter and the Order of the Phoenix Teenagers are bloody random Mentor Aurora Sinistra Mentor Bathsheda Babbling Don´t copy this to another site
Fourth year ends and Harry and his friends leave Hogwarts for the summer. Harry is dreading going back to the Dursleys but they aren´t the ones waiting for him at King´s Cross. Just what is the summer going to bring for our favourite Gryffindor?
lets win

lets win

F/F
F/M
Gen
M/M
Multi
Other
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Sirius Black/Remus Lupin, Draco Malfoy/Harry Potter, Marlene McKinnon/Dorcas Meadowes, Mary Macdonald & Marlene McKinnon & Lily Evans Potter, Hermione Granger & Harry Potter & Ron Weasley, Ron Weasley/Blaise Zabini, Hermione Granger/Pansy Parkinson, Regulus Black & Barty Crouch Jr. & Pandora Lovegood & Dorcas Meadowes & Evan Rosier, Sirius Black & Remus Lupin & Peter Pettigrew & James Potter, Regulus Black/James Potter/Lily Evans Potter, Draco Malfoy & Pansy Parkinson & Blaise Zabini, Bill Weasley & Charlie Weasley & Fred & George & Ginny Weasley & Percy Weasley & Ron Weasley,
Tags
Fix-It not really - Freeform wolfstar Hogwarts Sirius Black Lives Remus Lupin Lives Butterfly Effect you'll see - Freeform no beta read Hogwarts Sixth Year Hogwarts Fourth Year Cedric Diggory Lives
Harry led the way over to Dean and Seamus, who were discussing those hogwarts students of seventeen or over who might be entering. 'There's a rumour going round, Warrington got up early and put his name in,’ Dean told Harry. 'That big bloke from Slyt...
Ефект метелика

Ефект метелика

Gen
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Tom Riddle | Voldemort, Harry Potter/Tom Riddle | Voldemort
Tags
Drabble Don't Like Don't Read Butterfly Effect Time Travel Fix-It I Was Drunk When I Wrote This POV Voldemort (Harry Potter) Harry Potter Made Tom Riddle Love Him Voldemort Doesn't Want To Believe That His Young I Loves Harry Potter
Гаррі повернувся до минулого, щоб змінити майбутнє на краще. Уникнути війни, смертей, болю, а для цього йому потрібно (читай як необхідно) або вбити, або потоваришувати з Томом.Гаррі вибирає подружитися з ним, щоб допомогти зберегти цей дивовижний ро...
The Goblet of Fire and other unfortunate incidents

The Goblet of Fire and other unfortunate incidents

Gen
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Female Character(s), Original Male Character(s), Harry Potter, Fleur Delacour, Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Neville Longbottom, Alastor "Mad-Eye" Moody,
Tags
Alternate Universe - Canon Divergence Implied/Referenced Child Abuse Pureblood Culture (Harry Potter) Butterfly Effect Manipulative Albus Dumbledore Book 4: Harry Potter and the Goblet of Fire Teenagers are bloody random Don´t copy this to another site My Beta wants to punch Dumbledore
At the sorting feast of Harry´s fourth year, a new student gets sorted late into the third year class. What changes does one additional character bring to the story? Spoiler: The answer is: a lot.
A little chain of kindness

A little chain of kindness

M/M
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Sirius Black/Remus Lupin, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Marlene McKinnon, Dorcas Meadowes, Marlene McKinnon/Dorcas Meadowes, Marlene McKinnon's Father, Old lady
Tags
Flirting Awkward Flirting Fluff and Humor Butterfly Effect Sirius Black & James Potter Friendship Tall Remus Short Sirius college students coffe au Cafetería Sirius barista remus has a bad day
Remus's day started pretty decently. He helped an old lady and then continue as he was. But now he is having a bad day. What he doesn't know is that a little series of events had led to him wondering into the Marauders' coffee shop, where he meets th...
Letters, Ripples and Butterfly Wings

Letters, Ripples and Butterfly Wings

F/F
F/M
Gen
M/M
Multi
G
Updated
12.04.2025
Fandom
Naruto
Characters
Original Female Character, Minor or Background Relationship(s), Uchiha Sasuke, Uzumaki Naruto, Original Character(s) - Character, Haruno Sakura, Yamanaka Ino, Hyuuga Hinata, Uchiha Itachi, Uchiha Shisui, Hyuuga Neji, Umino Iruka,
Tags
Alternate Universe - Canon Divergence Not Canon Compliant Pre-Canon Canon-Typical Violence Implied/Referenced Child Abuse Action/Adventure Blood and Violence Politics Slice of Life Canon Compliant Violence Childhood Friends
"...This manga talks a lot about not repeating the errors of the past. And to be completely honest, overcoming traumatic experiences like Naruto does seems a bit idealist and naive to me. Even though, this kind of utopic idealism has to be written an...