Few characters split Hogwarts Legacy players like Sebastian Sallow. He’s charming, loyal and genuinely funny, and he’s also the friend who offers to teach you the Unforgivable Curses. Whether he ends up as your best friend or your biggest regret is very much up to you.
This guide covers who Sebastian is, how his relationship quests unfold in order, which spells you learn along the way and how the big final choice works. Spoiler warning: we cover the ending of his story.
Who Is Sebastian Sallow?
Sebastian is a Slytherin fifth year and one of your three main companions, alongside Natsai Onai and Poppy Sweeting. He lives in Feldcroft with his twin sister Anne and their uncle Solomon, and almost everything he does is driven by one goal: finding a cure for the curse that has left Anne in constant pain.
His closest friend is Ominis Gaunt, a fellow Slytherin from a family with a very dark history. This random detail actually connects to the bigger story: Ominis has seen what the Dark Arts did to his own family, which is why he pushes back on Sebastian so hard.
- House: Slytherin.
- Family: twin sister Anne, uncle Solomon, home in Feldcroft.
- Best friend: Ominis Gaunt.
- Goal: cure Anne’s curse, by any means necessary.
How You Meet Sebastian
You meet him in your first Defence Against the Dark Arts class, where Professor Hecat pairs you up for a duel. You win, and he takes an instant liking to you.
Later, in the main story quest In the Shadow of the Undercroft, he shows you his secret study space below the castle and teaches you Confringo, a fiery blasting curse that stays useful for the whole game. Don’t skip this one: Confringo is one of the best damage spells you’ll learn early.
Sebastian’s Relationship Quests in Order
His personal questline unlocks after the main quest In the Shadow of the Estate. It’s optional, it runs alongside the main story, and new parts open as you progress and level up. Here’s your checklist:
| # | Quest | Notable Reward |
|---|---|---|
| 1 | In the Shadow of the Bloodline | Story |
| 2 | In the Shadow of the Study | Crucio (if you accept) |
| 3 | In the Shadow of Discovery | Story |
| 4 | In the Shadow of Time | Imperio (if you accept) |
| 5 | In the Shadow of Distance | Story |
| 6 | In the Shadow of Hope | Story |
| 7 | In the Shadow of the Relic | Avada Kedavra |
| 8 | In the Shadow of Fate | The big choice |
A final follow up conversation opens after the main story’s last quest, and how it plays out depends on the choice you made in quest 8.
The Unforgivable Curses
Sebastian is the only character who teaches you the three Unforgivable Curses. You choose whether to learn them through dialogue, so there’s no wrong way to approach this if you’d rather keep your student’s hands clean.
- Crucio: torments the target and leaves them cursed, so follow up hits deal extra damage.
- Imperio: turns an enemy into a temporary ally that fights for you.
- Avada Kedavra: kills most enemies outright, with a long cooldown to balance it.
Completionists, you’ll want to know: using Unforgivables doesn’t lock you out of any ending, but some characters react to it, and the game treats these spells with real weight.
The Big Decision (Major Spoilers)
In the Shadow of the Relic is where everything breaks. Sebastian finally finds a relic he believes can save Anne, his uncle Solomon tries to stop him, and Sebastian kills Solomon with Avada Kedavra.
In the Shadow of Fate then puts the decision on you: do you turn Sebastian in to the headmaster, or stay quiet?
- Turn him in: Sebastian is expelled and sent to Azkaban, and he can no longer teach you any Unforgivable Curse you turned down earlier. Ominis leans toward reporting him at first, but he can be talked around.
- Stay quiet: Sebastian stays at Hogwarts and your friendship continues, carrying the weight of what happened.
This is one of those moments worth slowing down for. Save first: make a manual save before In the Shadow of Fate, so you can see the other outcome later without replaying hours of story.
Pro Tips for Sebastian’s Questline
- Keep up with the main story: his quests unlock in step with main quest progress and your level, so if the next one isn’t showing, push the main story along.
- Talk to Anne and Ominis: their reactions are where much of the emotional payoff lives.
- Use Confringo early: it pairs well with control spells like Levioso for easy combos.
- Decide your stance early: if you want to roleplay a student who refuses the Dark Arts, the dialogue lets you do that.
- Explore Feldcroft: the village and its surroundings show up on the Hogwarts Legacy interactive map, along with plenty of side content nearby.
Sebastian Sallow FAQ
How do you unlock Sebastian’s quests in Hogwarts Legacy?
Complete the main quest In the Shadow of the Estate. After that, his relationship quests open one by one as you progress the story and level up.
Which Sebastian quest teaches Avada Kedavra?
In the Shadow of the Relic, the seventh quest in his line. Crucio comes from In the Shadow of the Study and Imperio from In the Shadow of Time.
Should you turn Sebastian in?
Mostly a story choice. Turning him in sends him to Azkaban and also means he can’t teach you any Unforgivable Curse you refused earlier; staying quiet keeps him at Hogwarts. Neither choice changes the main story’s ending.
Does Sebastian Sallow die in Hogwarts Legacy?
No. His uncle Solomon is the one who dies, killed by Sebastian in In the Shadow of the Relic.
One more thing before you move on: if Sebastian’s story hooked you, our take on whether Hogwarts Legacy is still worth playing and everything we know about Hogwarts Legacy 2 are worth a read. The game still draws a steady crowd on PC; the live Hogwarts Legacy player count shows how many students are in the castle right now. Take it at your own pace.
