Stories by unspeakable3

Young Regulus Black is about to join his brother at Hogwarts for the very first time. He's reluctant and worried and scared, convinced that he'll be rubbish at everything, that no one will want to be his friend, that a mudblood will suffocate him in his sleep and, worse of all, that he'll disappoint his parents. Outside the safety of Hogwarts and Grimmauld Place, a war is brewing.
Regulus Black's journey to the afterlife.
In which Regulus Black finds his peaceful post-life disturbed by his stupid brother and some stupid organisation called the Order of the Phoenix or something. (takes place in the summer of 1995, between "lie low at Lupin's" and the events of HP and the Order of the Phoenix)
After Sirius leaves home, the only way that Regulus will allow his brother anywhere near him is when Sirius is in dog-form. Regulus has no idea that the Grim-like creature he shares secrets and bacon sandwiches with is his brother. He has no idea, that is, until he tries to say goodbye to 'Snuffles' for the last time, and his canine friend finally reveals his human form.
Orion Black died a fortnight ago. Between dreams, memories, her son and a Grim, Walburga persists.
Regulus expresses concern about the Dark Lord's choice of insignia. A skull? Really?
Sirius Black has always hated sitting idly by while other people get their hands dirty. But his first Order assignment out in the field leaves him feeling more turbulent than ever after he encounters the very last person he had hoped to see wearing a Death Eater's uniform. (originally posted for Sirius Black Fest 2020)
Regulus Black died twelve years ago and was transported to Hogwarts, as a ghost. It's not the place he would have chosen to linger for all eternity, but he supposes it's pleasant enough.
AU: Kreacher rescues Regulus from the Cave and takes him to Sirius.

Mercy for the Prince by unspeakable3 Stale Result (Last seen: )

Regulus x OC, (background) Sirius x Remus / In 1979, Regulus Black stole the Dark Lord's horcrux and swore he would destroy it. He went into hiding. He left his life behind. He destroyed the locket. In 1992, Regulus Black discovers that the Dark Lord isn't dead. Not quite alive, but certainly not dead. He goes back home, and finds his entire world turned upside down.
A selection of ficlets and drabbles exploring Regulus Arcturus Black's childhood and his relationships with the other members of the Most Noble and Ancient House of Black (among others). Inspired by r/FanFiction's writing prompts; may be expanded upon at some point. (mostly) canon-compliant.
Regulus Black just wants peace, quiet, and a little acknowledgement from time to time. Follow his journey through his first year at Hogwarts and beyond as he tries to navigate family, friends, homework and Death Eaters. Canon-compliant.
Amortentia was the most potent love potion in existence. Did Slughorn really think it was a good idea to have a classroom of hormone-addled sixteen year olds learn how to brew it?

Cassie by unspeakable3 Stale Result (Last seen: )

James Potter has everything he could wish for, except a friend. He spends his days watching the little girl next door through a hole in the hedge that divides their gardens and one day, decides that this little girl will be his very first friend.

The Reluctant Muggle by unspeakable3 Stale Result (Last seen: )

What if the Marauders had a muggle friend? AU.