HP Animagi Week

1️⃣ Day 1: Sanctuary

Helped (Severus Snape & Harry Potter, 2k, G) by JustAnotherPrince

What is worse than being attacked and injured? Being stuck in your animagus form on top of being attacked and injured.

Unexpectedly Bright Sunlight (James Potter/Severus Snape, 2.7k, T) by SiobhanHazel

With Harry going off to Hogwarts soon, James and Severus are preparing to adopt another child. The ups and downs of a big ole stag Animagus and grumpy potioneer learning how to be fathers, again.

The price of Veela tears (Fleur Delacour/Hermione Granger, 429w, G) by Elvira_Kamgut

The library had always been a sanctuary for Hermione. 

2️⃣ Day 2: Travels

Unexpectedly Bright Sunlight (James Potter/Severus Snape, 2.7k, T) by SiobhanHazel

With Harry going off to Hogwarts soon, James and Severus are preparing to adopt another child. The ups and downs of a big ole stag Animagus and grumpy potioneer learning how to be fathers, again.

The Kangal of Baskervilles (Remus Lupin & Harry Potter, 646w, G) by Elvira_Kamgut

Remus had known that his decision to take the child (to take Harry) away from his aunt, had been rash to say the least.

3️⃣ Day 3: Out of a Myth

The Elusive Phoenix (Harry Potter/Severus Snape, 1.3k, G) by JustAnotherPrince

A strange phoenix is spotted in the Forbidden Forest.

BATsing in the dark (Severus Snape centric, 368w, G) by Elvira_Kamgut

For the entirety of his career as a Hogwarts Professor (and if he was honest, also during his student days), people had gossiped about the possibility of Severus secretly being a vampire.

4️⃣ Day 4: Rebels

Whispers From Dragons (Harry Potter/Severus Snape, 2k, G) by JustAnotherPrince

Harry gets called in to help with a very irritable dragon.

After careful consideration (Remus Lupin centric, 226w, G) by Elvira_Kamgut

When Remus received Dumbledore's message with the question if he was willing to become the new DADA teacher, he had first laughed.

5️⃣ Day 5: Midnight

Midnight Flight (Harry Potter/Severus Snape, 1k, G) by JustAnotherPrince

Every night at midnight, Severus takes to the skies.

Proposal (Igor Karkaroff's Aide/Parvati Patil, 819w, G) by Babblecat3000

Viktor lets slip to Parvati something very interesting about her boyfriend.

My dearly beloved (Remus Lupin & Severus Snape, 212w, G) by Elvira_Kamgut

Severus, despite outward appearances, didn't enjoy patrolling the corridors on the hunt for misbehaving students.

6️⃣ Day 6: "Am I supposed to be scared?"

A young Prince in the making (Terence Higgs & Harry Potter, 4.1k, T) by Cyr_xmBx

Harry could have done without all the stress generated by the Yule Ball announcement. He would survive it, but.. He didn't like it. At least, he somehow managed to get a date for the Ball without asking anyone.

Welcome Home (Harry Potter/Severus Snape, 1.5k, M) by JustAnotherPrince

Harry returns to the castle after a week away.

Who is the monster and who is the man? (Fleur Delacour/Bill Weasley, 158w, G) by Elvira_Kamgut

There were a million different things to be afraid of within the Wizarding World.

7️⃣ Day 7: Free prompt

Just a dance (Harry Potter/Severus Snape, 5.8k, T) by JustAnotherPrince

"It was one dance," Severus growled into his glass, already wishing the night would end so he could return to his flat and his solitude.

"Ah, my dear Severus, I do believe this marks three times I've seen you two dance together now," Narcissa responded with her customary light laugh.

Meddling woman.

#️⃣ Joker 1: In Muggle London

A poem on the underground wall (Ambiguous character, 305w, G) by Elvira_Kamgut

A rat scattered away as the train arrived in the underground station, fleeing before the train wheels would have caught its tail in their grip.

#️⃣ Joker 2: Home-made Delicacy

No entries.

That's it for the HP Animagi Week 2026's masterlist!

🐈‍⬛ And that's it for the week!

The AO3 collection will stay open until April 16th, 2026 to allow any late submissions. However, keep in mind that new works won't be accepted past that date.

1️⃣Now, let’s start this week with the prompt for day one (April 6th, 2026): Sanctuary.

The fest’s Joker prompts are also here to help you find some inspiration:

In Muggle London

Home-made delicacy

🐈‍⬛ Schedule

Prompts revealed on January 8th, 2026. The event starts on April 6th, 2026. The event ends on April 12th, 2026. AO3 Collection closes on April 16th, 2026. Masterlist shared on April 18th, 2026.

🐈‍⬛ Rules & Guidelines

(1) Minimum word count: 100. / Maximum word count: None.

(2) The use of AI-generated content is strictly forbidden.

(3) The entries for this event can either be in the form of written stories or artworks. All submissions must be of your own creation or must be added with the original author/artist’s explicit permission.

(4) As this is a fandom-focused event, your entries must stay within the Harry Potter universe. No crossovers or original characters will be accepted.

(5) All entries must be new works, meaning that your submission cannot be an additional chapter of an existing fic. However, it can be a part of an existing series of one-shots or related works. - You cannot combine prompts into one story or artwork; however, you are allowed to create a story where each chapter is a prompt.

(6) Each submission must be appropriately tagged and content-warned. This includes the use of the Archive Rating and Warnings. - If you decide to use “Creator Chose Not To Use Archive Warnings”, you must still warn for potentially triggering content in the additional tags or the author’s notes. - Submissions with any Underage content will not be accepted. This includes any relationship (whether explicit or implied) between an adult and a character younger than 18 years old, as well as any relationship (whether explicit or implied) between two characters younger than 18 years old.

(7) Your entries must involve animagi in some way. For exemple, a character going through their first transformation; using their new abilities; being stuck in their animal form or fighting against it; or characters simply discussing the topic...

(8) To help keep the collection organized, please use the following tag format: - Each entry must have the tag HP Animagi Week 2026. - Each entry must have a tag for the prompt used (example of tag: Day 1: Rain or Joker 1: Sun).

If you have any questions about this event, please don’t hesitate to contact me through the Tumblr page, or by email at [email protected] .

6️⃣ Day 6: Family

Of dreams and family (Sirius Black/Remus Lupin, Draco Malfoy/Harry Potter, 1.1k, G) by goldenprophet

Remus decides to become an animagus.

Soaring onboard (Hermione Granger/Victoire Weasley, 2.6k, T) by SiobhanHazel

It's June, and Victoire's final day at Hogwarts. Hermione works up the courage to chat with Bill and Fleur, all the while looking forward to officially being able to date Victoire after her graduation.

I will do what I must (Sirius Black/Remus Lupin, Sirius Black & Remus Lupin & Harry Potter, 7.9k, T) by Lucigoo89

Harry was an idiot. He had thought Sirius was trapped, but now he and his friends were trapped in the Ministry instead. Harry is prepared to do anything he must to keep himself and all those he loves safe.

A dream is like a circle in time (Hermione Granger/Fem!Harry Potter, 2k, G) by septemberbells

A celebration is in order. In life, and in dreams, with those they all love.

Find your animal (James Potter/Lily Evans Potter, 6.2k, T) by SquibNation10

Everyone is super excited to find out what sixteen-year-old Harry Potter's animagi form would be. Harry just wants to enjoy summer without being interrogated.

7️⃣ Day 7: Free prompt

Be the Lioness that you are (Hermione Granger/Luna Lovegood, Hermione Granger & Minerva McGonagall, 1.9k, T) by SnarkyGranger1

Luna takes Hermione to see Minerva after she wouldn't change back to her normal self.

Dive for discovery (Draco Malfoy/Harry Potter, 2.3k, T) by The_sapphire_potterhead

Harry was having trouble finding his Animagus form. Every time he tried, he felt like the air was stolen from his lungs and he was forced to start all over again, lest he faint. After many dangerous experiences and many of Hermione's rants about safety, he turns to the only other Animagus in their year, as much as he hated him.

Thrilling duet (Hermione Granger/Victoire Weasley, 1.7k, T) by SiobhanHazel

A summer of love.

To see the meditative art through (Hermione Granger/Fem!Harry Potter, 758w, G) by septemberbells

Marigold Potter and her fianceé Hermione Granger have achieved their own animagus forms, but one of their cohort has a longer path. They join her in support.

Remember Not to Tell You're Overprotective Godfather Anything Ever Again! (Ron Weasley/Harry Potter, Sirius Black/Remus Lupin, 2.4k, G) by Lucigoo89

Harry is finally having his first date with Ron and hopefully that kiss Ron mentioned when they were fighting for their lives. Sadly, someone else has tagged along unbeknownst to the two boys.

Purrly for you (Minerva McGonagall/Poppy Pomfrey, 4.4k, T) by SquibNation10

Minerva McGonagall is the new teacher in Hogwarts, she struggles to adapt to the role but young Poppy Pomfrey helps her.

Someone watching in the dark (Regulus Black & Barty Crouch Jr. & Evan Rosier & Severus Snape, 229w, T) by Elvira_Kamgut

Severus is haunted, but are there only ghosts watching in the dark?

Beneath the feathers and furs (Fleur Delacour/Hermione Granger, 983w, G) by Clueless Anxious Ghost Of Hayhay

Having heard about a Vault containing documents about a death eater resurgence, Hermione and Fleur are tasked with recovering this vital information.

#️⃣ Joker 1: In the Forbidden Forest

Singing sweetly (Hermione Granger/Victoire Weasley, 1.5k, T) by SiobhanHazel

Hermione and Victoire meet in secret to assuage Hermione's worries about her student's situation.

Three hearts beneath the Moon + Art (Sirius Black/Remus Lupin, Sirius Black & Remus Lupin & Harry Potter, 387, G) by Lucigoo89

Harry is practicing his stalking on his godparents. Sadly, said godparents are currently a dog and a werewolf. A werewolf who thinks his kitten needs a good groom and to settle down for the rest of the night.

The Raven of the Forbidden Forest (Regulus Black & The Forbidden Forest, 614w, T) by Elvira_Kamgut

There is something inside the Forbidden Forest, this is a truth every student at Hogwarts learns early and learns it well. But what precisely is hidden beyond its borders, few know for certain.

#️⃣ Joker 2: Midnight snack

Who is eating downstairs? (Scabbers & Ron Weasley, 215w, G) by Elvira_Kamgut

Creaking sounds around midnight are never a good sign.

A sheep? In London? + Art (Sirius Black & Remus Lupin & Harry Potter, 390, T) by Lucigoo89

Harry was hungry and instead of going to the fridge like a normal boy, he went to find himself a midnight snack as a mountain lion.

a midnight snack for teddy on pesach (Hermione Granger/Fem!Harry Potter, 1.1k, G) by septemberbells

Teddy snuck into the kitchen as the clock changed to read ‘one two zero zero,’ and opened up the fridge, trying to be quiet. Teddy wasn’t sure what to grab, but milk seemed like a good start. Milk was always nice after nap or the park. Teddy frowned, not sure what else to eat, and then closed the fridge door. Teddy grabbed one of the sippy cups that was out at reachable height, something Teddy’s mums had made sure to have for ‘independence.’ The milk box was much bigger than the sippy cup, though, and this was a conundrum. Thankfully, Mum Mione must have gotten hungry too because she came out to the kitchen and knew just how to solve the problem!

And that's it for the HP Animagi Week 2025 masterlist!

1️⃣ Day 1: Dreams

When the rain washes you clean, you'll know (Hermione Granger/Fem!Harry Potter, 1.7k, G) by septemberbells

Amidst navigating newly presenting symptoms of a brain injury, Marigold Potter sees her dead godfather in a dream and makes an important decision.

It Came to me in a Dream (Sirius Black/Remus Lupin, Sirius Black & Remus Lupin & Harry Potter, 3.7k, G) by Lucigoo89

Harry has been working hard on learning his Animagi form. it's not the only thing he learns though, including its hard to control yourself as an emotional 15-year-old with a whole new form to master.

Gliding along (Hermione Granger/Victoire Weasley, 490w, G) by SiobhanHazel

A decade into teaching Charms, and Hermione is already weary. It's not the work, it's her craving for something deeper. Students come and go, and soon it will be time for Victoire to graduate as well. Hermione is determined to ignore the longing.

Volation: to dream again (Sirius Black/Severus Snape, 1.6k, M) by SquibNation10

The first moon night together after the war.

An unexpected raven (Harry Potter/Severus Snape, Multichapter, E) by SpireaSalix

As Severus struggles with his inexplicable —and terribly inconvenient— infatuation with his student Harry Potter, an unexpected visit from a raven turns his world upside down. And who knows? Perhaps Severus will get that happy ending he never thought he’d have.

Of dreams and family (Sirius Black/Remus Lupin, Draco Malfoy/Harry Potter, 1.1k, G) by goldenprophet

Remus decides to become an animagus.

Padfoot, Moony (Sirius Black/Remus Lupin, 2.9k, G) by marigoldwritesthings

Remus and Sirius, in snapshots, in Grimmauld Place. The dog doesn’t dream the way the human does. The colours are different. The red is gone completely, the yellow stronger and brighter - a sun, a blaze. The nuance of thoughts and feelings replaced with the most straightforward: you, the dog thinks. My person. The dog used to know a wolf. The dog used to know a stag. The dog used to know a… (The human mind is strong enough to erase the last part. The dog remembers camaraderie and love, but the human knows those were a trick.)

2️⃣ Day 2: "Behave."

A poet's heart in the eye of the hurricane, i struggle with finding words to sing, so behave, beloved (Hermione Granger/Fem!Harry Potter, Andromeda Black Tonks/Minerva McGonagall, 2k, T) by septemberbells

Hermione Granger and Marigold Potter decide to become animagi. Andromeda passes on some of their questions to Headmistress Minerva McGonagall, and if she gets to flirt a bit with the woman at their regular teas, well, that's her own business, isn't it?

Train the heart (Draco Malfoy/Harry Potter, 2.3k, T) by The_sapphire_potterhead

When Harry spends too much time in his animagus form, he loses his human mind. He fights whatever he sees and tears apart whatever comes close to him. This makes spending time in his animagus form with anyone very, very risky. In order to help him, Draco trains him.

Behave Harry! (Sirius Black/Remus Lupin, Sirius Black & Remus Lupin & Harry Potter, 1.3k, G) by Lucigoo89

Harry has been in animagus form for two weeks now. Sirius and Remus are ready for him to be a teenager again, and thankfully, they have a trick up their sleeve to get him to turn back.

An unexpected raven (Harry Potter/Severus Snape, Multichapter, E) by SpireaSalix

As Severus struggles with his inexplicable —and terribly inconvenient— infatuation with his student Harry Potter, an unexpected visit from a raven turns his world upside down. And who knows? Perhaps Severus will get that happy ending he never thought he’d have.

Fanning feathers (Hermione Granger/Victoire Weasley, 909w, T) by SiobhanHazel

Hermione has enough on her mind, she doesn't need to be distracted by a certain beautiful girl.

Of dreams and family (Sirius Black/Remus Lupin, Draco Malfoy/Harry Potter, 1.1k, G) by goldenprophet

Remus decides to become an animagus.

Behave yourself! (Arabella Figg/Minerva McGonagall, Arabella Figg & Harry Potter, 476w, G) by Elvira_Kamgut

Minerva feels free to behave as cat-like as she want, especially when coming across a bad-behaved dog.

Untitled (Sirius Black/Remus Lupin, G) by marigoldwritesthings

The dog’s person holds a leash. He smells of comfort and of home and of the darkest parts of a forest.

Snot War (Sirius Black/Lily Evans Potter, 1.8k, T) by SquibNation10

James and Regulus ask Sirius and Lily to babysit their son, Harry. Sirius and Lily start a Snot War.

Shaking the Wings (of their terrible youths) (Sirius Black/Remus Lupin/Harry Potter, 3k, M) by the_prettiest_w0lf_star

Together, they performed the incantations one last time, clicked the vials like shots of alcohol for good measure, and chugged the potion.

(ART) Behave (Hermione Granger/Bellatrix Black Lestrange, Bellatrix Black Lestrange & Crookshanks, G) by miss_grimwood_art

Hermione doesn't know why she expected it to go well when she introduced Crookshanks to the new cat in her life - Bellatrix in her animagus form.

3️⃣ Day 3: Warmth

Of dreams and family (Sirius Black/Remus Lupin, Draco Malfoy/Harry Potter, 1.1k, G) by goldenprophet

Remus decides to become an animagus.

Where is he now? (Sirius Black/Remus Lupin, Sirius Black & Remus Lupin & Harry Potter, 3.3k, G) by Lucigoo89

Harry is not safe and sound in Grimmauld Place and Sirius and Remus are desperate to find him. Imangine their suprise when they don't find him alone.

Let me grab your soul away (Hermione Granger/Fem!Harry Potter, 774w, E) by septemberbells

Immediately follows the events of a poet's heart in the eye of the hurricane, i struggle with finding words to sing, so behave, beloved. Pure smut.

Nesting near (Hermione Granger/Victoire Weasley, 1.3k, G) by SiobhanHazel

Victoire spends a relaxing Sunday in her favourite way; sunbathing and having tea with Hermione.

Skin to fur (Sirius Black/James Potter, 2k, M) by SquibNation10

The "first time" is often intertwined with the novelty, anticipation, and potential for a profound, transformative experience that can be both exciting and a bit daunting, marking a significant step in a relationship. The first time, James and Sirius transform into a dog and a stag.

An unexpected raven (Harry Potter/Severus Snape, Multichapter, E) by SpireaSalix

As Severus struggles with his inexplicable —and terribly inconvenient— infatuation with his student Harry Potter, an unexpected visit from a raven turns his world upside down. And who knows? Perhaps Severus will get that happy ending he never thought he’d have.

The forgotten Longbottom greenhouse (Callidora Black Longbottom & Neville Longbottom, 397w, G) by Elvira_Kamgut

Callidore has hidden away in her house, her only companion a loyal dog, when life comes knocking on her door.

4️⃣ Day 4: Looking in the mirror

Of dreams and family (Sirius Black/Remus Lupin, Draco Malfoy/Harry Potter, 1.1k, G) by goldenprophet

Remus decides to become an animagus.

Each to find the mirror of herself (Hermione Granger/Fem!Harry Potter, 1.1k, G) by septemberbells

“The solstices are pregnant with power. Just as the lengths of days contract and expand at the winter solstice, so too does ambient magic. The magic in our world enters objects and imbues them with potential, and then, gradually, leaves.”

Fluttering in (Hermione Granger/Victoire Weasley, 1.4k, T) by SiobhanHazel

Many frivolous thoughts are stuck in Hermione's mind tonight, not the least of which is quietly pining over her student.

I look in the mirror and I do not see me (Sirius Black/Remus Lupin, Sirius Black & Remus Lupin & Harry Potter, 2.7k, G) by Lucigoo89

Harry looks in the mirror, and he sees a stranger. A stranger with his father's face and his mother's eyes. A stranger who has endured more than a child should ever have to endure. Harry wants to look in the mirror and see him, Harry Potter. It's a pity he doesn't know who Harry Potter is outside of the Boy-Who-Lived.

An unexpected raven (Harry Potter/Severus Snape, Multichapter, E) by SpireaSalix

As Severus struggles with his inexplicable —and terribly inconvenient— infatuation with his student Harry Potter, an unexpected visit from a raven turns his world upside down. And who knows? Perhaps Severus will get that happy ending he never thought he’d have.

Distorted minds (Remus Lupin/Peter Pettigrew, 897w, T) by SquibNation10

What does Peter see when he looks into a mirror? A rat? A journey into the mind of someone who contemplates betrayal and the other who can never fathom it, two perspectives clash, who will win?

One as beautiful as me  + Poem (Gilderoy Lockhart & Severus Snape, 708w, G) by Elvira_Kamgut

Gilderoy is admiring his own reflection when someone visits him inside his rooms.

5️⃣ Day 5: Secret ritual

Of dreams and family (Sirius Black/Remus Lupin, Draco Malfoy/Harry Potter, 1.1k, G) by goldenprophet

Remus decides to become an animagus.

Mid-century Modern (Lucius Malfoy/Minerva McGonagall, Lucius Malfoy/Narcissa Black Malfoy, 10k, E) by rachels_memories

The Wizarding wars are long over, nothing but gossip and ephemera to report. Don’t worry, Rita, here is this fractious old reprobate offering up a juicy cliffhanger. Your McGonagall tell-all is sure to be another bestseller.

The Boy-Who-Lived is now the Boy-Who-Is-Loved (Sirius Black/Remus Lupin, Sirius Black & Remus Lupin & Harry Potter, 6.4k, G) by Lucigoo89

Harry, Sirius and Remus are doing something that they known no one will be happy with. To bad they don't care. They are a family now and nothing, least of all unsupportive opinions, will change that.

The owl and the pussycat (Hermione Granger/Fem!Harry Potter, 3.1k, G) by septemberbells

Marigold Potter and Hermione Granger, as well as some of Minerva McGonagall's best N.E.W.T. students, are getting ready to become animagi. The magic of the solstice is thick in the air, and each of them will transform, in turn.

Scurry over (Marlene McKinnon/Peter Pettigrew, 2k, T) by SquibNation10

Everyone gets to have secrets. Peter has a secret ritual too, a little routine with his favourite girl, Marlene Mckinnon.

I do (what has to be done) (James Potter/Lily Evans Potter, Harry Potter & Lily Evans Potter, 610w, T) by Elvira_Kamgut

Lily is done with James' bullshit. If he isn't going to ensure her son's survival, then she will.

An unexpected raven (Harry Potter/Severus Snape, Multichapter, E) by SpireaSalix

As Severus struggles with his inexplicable —and terribly inconvenient— infatuation with his student Harry Potter, an unexpected visit from a raven turns his world upside down. And who knows? Perhaps Severus will get that happy ending he never thought he’d have.