sirius & regulus

[blackbrothersfest]

Black Brothers Fest: 2025-2026 Schedule & Links

We're back for another year!

Hello and welcome to the Black Brothers Fest, a Harry Potter fest focused on Regulus & Sirius Black. The minimum requirements are either a 1,000 word fic or a piece of clean lineart on unlined paper.

You must be 18+ to participate.

The planned schedule is as follows:

Tagset Nominations & Prompting Open: 15 November

Claiming Opens: 30 November

Nominations and Prompting Close: 15 December

Claiming Closes: 31 December

Works Due: 28 February, 11:59 PM EDT

Works Revealed: starting 1 April

Creators Revealed: two weeks after all works go live.

Posting may be staggered or all at once, depending on the number of works received. If it is staggered, authors will receive communication in advance for their posting date.

Tag Set | AO3 Collection | Rules & Guidelines | Discord

Contact: xslytherclawxwrites/@/gmail.com

[blackbrothersfest]

Thank you for following along with the Black Brothers fest!

Creators have now been revealed!

if you have some time, please take a minute to fill out our recap survey here!

Here's the complete masterlist for 2026. Please leave the authors lots of kudos and comments!

Say hi to your brother by DomsdayFire // art, NR // Regulus & Sirius, the Black Family

There Are Greater Ways to Leave (This Isn't One of Them) by Choosadex / @choosadex // 5k, T // Regulus & Sirius, Sirius & James & Remus & Peter

A Study in Blacks by neuralignition // 28k, T // Regulus & Sirius, Regulus & Harry, Sirius & Harry

Five times Regulus stopped Sirius from leaving, and the one time he let him go by Igetje / @igetje // 10k, T // Regulus & Sirius, Sirius/Remus, Sirius & James

Phantom Pains by finchfeathers (stigmartyr) / @flightlessfinch // 2k, T // Regulus & Sirius

forgive me as I have sinned for you by AntoninStark // art, E // Regulus & Sirius, Regulus & Walburga

an untimely meeting by literal_satanisme / @medusajellyfish69 // 1k, T // Regulus & Sirius, Sirius & Remus

ghosts from the past jumping out by xslytherclawx / @xslytherclawx-writes // 6k, T // Regulus & Sirius, Regulus/Evan, Sirius & James

Five Times Regulus Stopped Sirius From Leaving, and One Time He Let Him Go by LuxaLucifer / @luxalupinlvr // 3k, T // Regulus & Sirius

saw they played you (cross my heart) by xslytherclawx / @xslytherclawx-writes // 1k, T // Regulus & Sirius, Sirius & Lily, Sirius & James

[blackbrothersfest]

Thank you for following along with the Black Brothers fest!

Here's the Anon Masterlist for 2026. Please leave the authors lots of kudos and comments; creatorreveals will be coming on the 15th!

Say hi to your brother // art, NR // Regulus & Sirius, the Black Family

There Are Greater Ways to Leave (This Isn't One of Them) // 5k, T // Regulus & Sirius, Sirius & James & Remus & Peter

A Study in Blacks // 28k, T // Regulus & Sirius, Regulus & Harry, Sirius & Harry

Five times Regulus stopped Sirius from leaving, and the one time he let him go // 10k, T // Regulus & Sirius, Sirius/Remus, Sirius & James

Phantom Pains // 2k, T // Regulus & Sirius

forgive me as I have sinned for you // art, E // Regulus & Sirius, Regulus & Walburga

an untimely meeting // 1k, T // Regulus & Sirius, Sirius & Remus

ghosts from the past jumping out // 6k, T // Regulus & Sirius, Regulus/Evan, Sirius & James

Five Times Regulus Stopped Sirius From Leaving, and One Time He Let Him Go // 3k, T // Regulus & Sirius

saw they played you (cross my heart) // 1k, T // Regulus & Sirius, Sirius & Lily, Sirius & James

[blackbrothersfest]

A Study in Blacks

Chapters: 9/9 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Regulus Black & Harry Potter, Sirius Black & Harry Potter, Bellatrix Black Lestrange & Minerva McGonagall Characters: Harry Potter, Sirius Black, Regulus Black, Bellatrix Black Lestrange, Narcissa Black Malfoy, Alphard Black, James Potter, Minerva McGonagall, Lucius Malfoy Additional Tags: Period-Typical Sexism, Period-Typical Homophobia, Dysfunctional Family, POV Multiple, Pre-Slash Harry Potter/Alphard Black if you squint, Partially ignores the Black Family canon age gaps, Time Travel Word Count: 614 (total: 28,486) Chaptered? Yes (9/9) Summary:

Sirius is too busy trying to get disowned, protect his brother, and become an Animagus. He doesn't need a new 'tutor' cramping his style.

Prompt Text:

self-prompt

Link: https://archiveofourown.org/works/79608001/chapters/221731816

[blackbrothersfest]

saw they played you (cross my heart)

Chapters: 1/1 Fandom: Harry Potter - J. K. Rowling Rating: Teen And Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Sirius Black & Lily Evans Potter, Sirius Black & James Potter Characters: Sirius Black, Lily Evans Potter, Regulus Black Additional Tags: Canon Compliant, Marauders Era (Harry Potter), Death Eater Regulus Black, Pureblood Politics (Harry Potter) Word Count: 1,433 Chaptered? No Summary:

Sirius couldn't have saved his brother. Not really.

Prompt Text:

Sirius finding out Regulus got the dark mark

Link: https://archiveofourown.org/works/84036461

[blackbrothersfest]

Five Times Regulus Stopped Sirius From Leaving, and One Time He Let Him Go

Chapters: 1/1 Fandom: Harry Potter - J. K. Rowling Rating: Teen And Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black Characters: Regulus Black, Sirius Black Additional Tags: Regulus Black and Sirius Black Angst, Number Twelve Grimmauld Place, Gay Sirius Black, Canon Compliant, POV Regulus Black, Minor Sirius Black/Remus Lupin, Angst, Angst and Feels, Regulus Black and Sirius Black Have a Complicated Relationship, Marauders Era (Harry Potter), Canon Universe, Black Brothers Fest 2026, Brotherly Angst, Brotherly Love Word Count: 2,687 Chaptered? No Summary:

It happens over and over: Sirius packs his bags, and Regulus stops him. He only wants the best for his brother, after all. Eventually, the cycle ends.

Prompt Text:

5 times Regulus stopped Sirius from running away and the 1 time he let him go

Link: https://archiveofourown.org/works/83818146

[blackbrothersfest]

ghosts from the past jumping out

Chapters: 1/1 Fandom: Harry Potter - J. K. Rowling Rating: Teen And Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Regulus Black/Evan Rosier, Sirius Black & James Potter Characters: Regulus Black, Sirius Black, Evan Rosier, James Potter Additional Tags: Alternate Universe - No Voldemort (Harry Potter), Squib Regulus Black, Bad Parents Orion Black and Walburga Black, Minor Sirius Black/Remus Lupin, Past Child Abuse, Obliviate | Memory Charm (Harry Potter), Pureblood Culture (Harry Potter), London Word Count: 5,645 Chaptered? No Summary:

Sirius Black is an only child. That is a fact that has been hammered into him since he was thirteen years old. He came home from Hogwarts for Christmas to find the room across from his empty, as if no one had ever been there at all. - Regulus Jones — not his birth surname — is an orphan. This has been a fact of his life since he was eleven years old. He was dropped off at a hospital, bloody and bruised and with a broken arm, by a concerned citizen who saw him wandering the streets of Islington.

Prompt Text:

AU were either Sirius or Regulus is a squib.

Link: https://archiveofourown.org/works/83858196

[blackbrothersfest]

A Study in Blacks

Chapters: 8/9 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Regulus Black & Harry Potter, Sirius Black & Harry Potter, Bellatrix Black Lestrange & Minerva McGonagall Characters: Harry Potter, Sirius Black, Regulus Black, Bellatrix Black Lestrange, Narcissa Black Malfoy, Alphard Black, James Potter, Minerva McGonagall, Lucius Malfoy Additional Tags: Period-Typical Sexism, Period-Typical Homophobia, Dysfunctional Family, POV Multiple, Pre-Slash Harry Potter/Alphard Black if you squint, Partially ignores the Black Family canon age gaps, Time Travel Word Count: 6,824 (total: 27,872) Chaptered? Yes (8/9) Summary:

Sirius is too busy trying to get disowned, protect his brother, and become an Animagus. He doesn't need a new 'tutor' cramping his style.

Prompt Text:

self-prompt

Link: https://archiveofourown.org/works/79608001/chapters/221071861

[blackbrothersfest]

Five times Regulus stopped Sirius from leaving, and one time he let him go

Chapters: 6/6 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Sirius Black/Remus Lupin, Sirius Black & James Potter Characters: Regulus Black, Sirius Black, Remus Lupin, Walburga Black, Orion Black, Kreacher (Harry Potter), Barty Crouch Jr., James Potter Additional Tags: POV Regulus Black, Unreliable Narrator, Black Family Drama (Harry Potter), Dysfunctional Black Family (Harry Potter), Black Family Angst (Harry Potter), Regulus Black-centric, Regulus Black & Sirius Black Have a Complicated Relationship, Regulus Black and Sirius Black Angst, Walburga Black's A+ Parenting, Blood Purity Prejudice & Pureblood Supremacy (Harry Potter), indoctrination, Marauders Era (Harry Potter), Love, Brotherly Love, Angst, Minor Sirius Black/Remus Lupin, Found Family, Canon Compliant, Canon Universe, Hogwarts Era, Young Sirius Black, Young Regulus Black, Black Brothers Fest 2026 Word Count: 1,526 (total: 10,369) Chaptered? Yes (6/6) Summary:

The first time Sirius tried to escape, Regulus was only four. The second time, he’d just been trying to practice flying in the backyard. The third time was the first time he stuck his mingling nose in – Potter. The fourth time Regulus threatened to get father involved. The fifth time was the first time Sirius didn’t ask Regulus to come with him. And the sixth time? Well.

Prompt Text:

5 times Regulus stopped Sirius from running away and the 1 time he let him go

Link: https://archiveofourown.org/works/80862961/chapters/220393956

[blackbrothersfest]

an untimely meeting

Chapters: 1/1 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Sirius Black & Remus Lupin Characters: Regulus Black, Sirius Black, Remus Lupin Additional Tags: AmnesiaDoppelgangerRegulus Black LivesRegulus Black and Sirius Black AngstAlternate Universe - Bar/Pub Word Count: 1,403 Chaptered? No Summary:

Regulus survives the cave but loses his memory. He spends years thinking his name is whatever the Muggles who found him picked. Sirius meets him completely by accident in a Muggle pub in 1996 and almost drops his drink because the bartender looks exactly like his dead brother.

Prompt Text:

Regulus survives the cave but loses his memory. He spends years thinking his name is whatever the Muggles who found him picked. Sirius meets him completely by accident in a Muggle pub in 1996 and almost drops his drink because the bartender looks exactly like his dead brother.

Link: https://archiveofourown.org/works/80487676

[blackbrothersfest]

Five times Regulus stopped Sirius from leaving, and one time he let him go

Chapters: 5/6 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Sirius Black/Remus Lupin, Sirius Black & James Potter Characters: Regulus Black, Sirius Black, Remus Lupin, Walburga Black, Orion Black, Kreacher (Harry Potter), Barty Crouch Jr., James Potter Additional Tags: POV Regulus Black, Unreliable Narrator, Black Family Drama (Harry Potter), Dysfunctional Black Family (Harry Potter), Black Family Angst (Harry Potter), Regulus Black-centric, Regulus Black & Sirius Black Have a Complicated Relationship, Regulus Black and Sirius Black Angst, Walburga Black's A+ Parenting, Blood Purity Prejudice & Pureblood Supremacy (Harry Potter), indoctrination, Marauders Era (Harry Potter), Love, Brotherly Love, Angst, Minor Sirius Black/Remus Lupin, Found Family, Canon Compliant, Canon Universe, Hogwarts Era, Young Sirius Black, Young Regulus Black, Black Brothers Fest 2026 Word Count: 2,048 (total: 8,817) Chaptered? Yes (5/6) Summary:

The first time Sirius tried to escape, Regulus was only four. The second time, he’d just been trying to practice flying in the backyard. The third time was the first time he stuck his mingling nose in – Potter. The fourth time Regulus threatened to get father involved. The fifth time was the first time Sirius didn’t ask Regulus to come with him. And the sixth time? Well.

Prompt Text:

5 times Regulus stopped Sirius from running away and the 1 time he let him go

Link: https://archiveofourown.org/works/80862961/chapters/220079371

[blackbrothersfest]

A Study in Blacks

Chapters: 6/9 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Regulus Black & Harry Potter, Sirius Black & Harry Potter, Bellatrix Black Lestrange & Minerva McGonagall Characters: Harry Potter, Sirius Black, Regulus Black, Bellatrix Black Lestrange, Narcissa Black Malfoy, Alphard Black, James Potter, Minerva McGonagall, Lucius Malfoy Additional Tags: Period-Typical Sexism, Period-Typical Homophobia, Dysfunctional Family, POV Multiple, Pre-Slash Harry Potter/Alphard Black if you squint, Partially ignores the Black Family canon age gaps, Time Travel Word Count: 2,266 (total: 18,074) Chaptered? Yes (6/9) Summary:

Sirius is too busy trying to get disowned, protect his brother, and become an Animagus. He doesn't need a new 'tutor' cramping his style.

Prompt Text:

self-prompt

Link: https://archiveofourown.org/works/79608001/chapters/219935681

[blackbrothersfest]

Five times Regulus stopped Sirius from leaving, and one time he let him go

Chapters: 4/6 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Sirius Black/Remus Lupin, Sirius Black & James Potter Characters: Regulus Black, Sirius Black, Remus Lupin, Walburga Black, Orion Black, Kreacher (Harry Potter), Barty Crouch Jr., James Potter Additional Tags: POV Regulus Black, Unreliable Narrator, Black Family Drama (Harry Potter), Dysfunctional Black Family (Harry Potter), Black Family Angst (Harry Potter), Regulus Black-centric, Regulus Black & Sirius Black Have a Complicated Relationship, Regulus Black and Sirius Black Angst, Walburga Black's A+ Parenting, Blood Purity Prejudice & Pureblood Supremacy (Harry Potter), indoctrination, Marauders Era (Harry Potter), Love, Brotherly Love, Angst, Minor Sirius Black/Remus Lupin, Found Family, Canon Compliant, Canon Universe, Hogwarts Era, Young Sirius Black, Young Regulus Black, Black Brothers Fest 2026 Word Count: 2,029 (total: 6,769) Chaptered? Yes (4/6) Summary:

The first time Sirius tried to escape, Regulus was only four. The second time, he’d just been trying to practice flying in the backyard. The third time was the first time he stuck his mingling nose in – Potter. The fourth time Regulus threatened to get father involved. The fifth time was the first time Sirius didn’t ask Regulus to come with him. And the sixth time? Well.

Prompt Text:

5 times Regulus stopped Sirius from running away and the 1 time he let him go

Link: https://archiveofourown.org/works/80862961/chapters/219232026

[blackbrothersfest]

forgive me as I have sinned for you

Chapters: 1/1 Fandom: Harry Potter - J. K. Rowling Rating: Explicit Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Walburga Black & Black Family Characters: N/A Additional Tags: Implied/Referenced Suicide, Implied/Referenced Character Death Word Count: 2,170 (total: 4,740) Chaptered? No Summary:

A drawing on the contentious perspective between Walburga and her sons, as she writes her suicide letter onto Regulus' portrait.

Prompt Text:

Orion and/or Walburga’s POV on the Black brothers relationship

Link: https://archiveofourown.org/works/80270426

[blackbrothersfest]

Five times Regulus stopped Sirius from leaving, and one time he let him go

Chapters: 3/6 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Sirius Black/Remus Lupin, Sirius Black & James Potter Characters: Regulus Black, Sirius Black, Remus Lupin, Walburga Black, Orion Black, Kreacher (Harry Potter), Barty Crouch Jr., James Potter Additional Tags: POV Regulus Black, Unreliable Narrator, Black Family Drama (Harry Potter), Dysfunctional Black Family (Harry Potter), Black Family Angst (Harry Potter), Regulus Black-centric, Regulus Black & Sirius Black Have a Complicated Relationship, Regulus Black and Sirius Black Angst, Walburga Black's A+ Parenting, Blood Purity Prejudice & Pureblood Supremacy (Harry Potter), indoctrination, Marauders Era (Harry Potter), Love, Brotherly Love, Angst, Minor Sirius Black/Remus Lupin, Found Family, Canon Compliant, Canon Universe, Hogwarts Era, Young Sirius Black, Young Regulus Black, Black Brothers Fest 2026 Word Count: 2,170 (total: 4,740) Chaptered? Yes (3/6) Summary:

The first time Sirius tried to escape, Regulus was only four. The second time, he’d just been trying to practice flying in the backyard. The third time was the first time he stuck his mingling nose in – Potter. The fourth time Regulus threatened to get father involved. The fifth time was the first time Sirius didn’t ask Regulus to come with him. And the sixth time? Well.

Prompt Text:

5 times Regulus stopped Sirius from running away and the 1 time he let him go

Link: https://archiveofourown.org/works/80862961/chapters/218899161

[blackbrothersfest]

A Study in Blacks

Chapters: 4/9 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Regulus Black & Harry Potter, Sirius Black & Harry Potter, Bellatrix Black Lestrange & Minerva McGonagall Characters: Harry Potter, Sirius Black, Regulus Black, Bellatrix Black Lestrange, Narcissa Black Malfoy, Alphard Black, James Potter, Minerva McGonagall, Lucius Malfoy Additional Tags: Period-Typical Sexism, Period-Typical Homophobia, Dysfunctional Family, POV Multiple, Pre-Slash Harry Potter/Alphard Black if you squint, Partially ignores the Black Family canon age gaps, Time Travel Word Count: 3,490 (total: 12,816) Chaptered? Yes (4/9) Summary:

Sirius is too busy trying to get disowned, protect his brother, and become an Animagus. He doesn't need a new 'tutor' cramping his style.

Prompt Text:

self-prompt

Link: https://archiveofourown.org/works/79608001/chapters/218739246

[blackbrothersfest]

Five times Regulus stopped Sirius from leaving, and one time he let him go

Chapters: 2/6 Fandom: Harry Potter - J. K. Rowling Rating: Teen and Up Audiences Warnings: No Archive Warnings Apply Relationships: Regulus Black & Sirius Black, Sirius Black/Remus Lupin, Sirius Black & James Potter Characters: Regulus Black, Sirius Black, Remus Lupin, Walburga Black, Orion Black, Kreacher (Harry Potter), Barty Crouch Jr., James Potter Additional Tags: POV Regulus Black, Unreliable Narrator, Black Family Drama (Harry Potter), Dysfunctional Black Family (Harry Potter), Black Family Angst (Harry Potter), Regulus Black-centric, Regulus Black & Sirius Black Have a Complicated Relationship, Regulus Black and Sirius Black Angst, Walburga Black's A+ Parenting, Blood Purity Prejudice & Pureblood Supremacy (Harry Potter), indoctrination, Marauders Era (Harry Potter), Love, Brotherly Love, Angst, Minor Sirius Black/Remus Lupin, Found Family, Canon Compliant, Canon Universe, Hogwarts Era, Young Sirius Black, Young Regulus Black, Black Brothers Fest 2026 Word Count: 1,765 (total: 2,607) Chaptered? Yes (2/6) Summary:

The first time Sirius tried to escape, Regulus was only four. The second time, he’d just been trying to practice flying in the backyard. The third time was the first time he stuck his mingling nose in – Potter. The fourth time Regulus threatened to get father involved. The fifth time was the first time Sirius didn’t ask Regulus to come with him. And the sixth time? Well.

Prompt Text:

5 times Regulus stopped Sirius from running away and the 1 time he let him go

Link: https://archiveofourown.org/works/80862961/chapters/217996281