Hogwarts Legacy

Hogwarts Legacy

45 Achievements

1,000

60-80h

Xbox Series
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A Sallow Grave

A Sallow Grave

Complete Sebastian Sallow's relationship line

15

29.94%

How to unlock the A Sallow Grave achievement in Hogwarts Legacy - Definitive Guide

You first get introduced to Sebastian during the main story quest "Defence Against the Dark Arts Class" - shortly after that you'll start progressing his relationship questline. There's a total of 14 quests to complete for his relationship questline:
  1. In the Shadow of the Undercroft (Main Quest)
  2. In the Shadow of the Estate (Main Quest)
  3. In the Shadow of the Bloodline (Side Quest)
  4. In the Shadow of the Study (Side Quest)
  5. In the Shadow of Discovery (Side Quest)
  6. In the Shadow of Time (Side Quest)
  7. In the Shadow of Distance (Side Quest)
  8. In the Shadow of the Mine (Main Quest)
  9. In the Shadow of the Mountain (Main Quest)
  10. In the Shadow of Hope (Side Quest)
  11. In the Shadow of the Relic (Side Quest)
  12. In the Shadow of Fate (Side Quest)
  13. The Final Repository (Main Quest)
  14. In the Shadow of Friendship (Side Quest)
Note: In most cases you'll need to advance the main story questline before his next relationship side quest will appear.
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15 Feb 2023 15:00

14 Comments
I'm Gryphindor and I just completed this quest. I had to beat the main story to get Sebastian to come out from hiding in the Slytherin Common Room. It brought me straight into a cutscene with him once I beat the final boss.
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By Sycomaniaa on 01 Apr 2023 14:36
I’ve completed the main story and all quest but still don’t have this achievement! Is it glitched?
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By mnc91493 on 17 Feb 2023 01:25
I have the same problem…didnt pop after doing all missions
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By OdeioBacon on 17 Feb 2023 06:40
Hasn’t unlocked for me either, have all mentioned missions done.
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By Kaiologyy on 18 Feb 2023 19:15
Same with me, I have completed the final quest but no Achievement.
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By MasChoose on 22 Feb 2023 08:30
Same. Did everything but last quest didn't register. Got the achievement for doing all the side quests but this one doesn't appear on the list and on the challenges I'm at 31/32
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By gunmetaldjs on 24 Feb 2023 22:36
For anyone it did not unlock for try going back and speaking to him again in the undercroft. There is some conversation needed to finish it all off.
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By Mr Ick the 1st on 28 Feb 2023 00:39
He isn’t in the undercroft for me ^
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By Kaiologyy on 01 Mar 2023 13:24
I just read an article that says you must be playing as Slytherin to earn this achievement. Playing as Ravenclaw you can’t get any companion Achievements. Where as the other three houses you can only get the achievement for the house companion.
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By XyberDAWG on 08 Mar 2023 17:45
I’m ravenclaw and earned the other companion achievements, just not this one. ^^
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By Kaiologyy on 09 Mar 2023 05:34
I'm ravenclaw and it just popped for me, so it can be done. The last conversation you have with Sebastian will be in the undercroft. Then it should pop.
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By Gemgemchan on 24 Apr 2023 23:10
This didnt pop for me until the final boss fight of the main quest. Not sure if it makes a difference but I chose to hand him in
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By OG ShadowBoa on 20 May 2024 04:46
My achievement did not unlock for the first month or so after beating all of his missions but on April 12, 2023, I loaded up my save and the achievement unlocked after a couple seconds.
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By Slimey Cat Logs on 12 Apr 2023 19:04
I'm Gryffendor and popped both achievements.

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By Apostle92627 on 17 Jul 2023 04:19
View all 14 comments Show less comments
You first meet Sebastian, a Slytherin student, during the main quest "Defence Against the Dark Arts Class".

As you progress through the story, Sebastian's quests pop up in your field guide. There are a total of 14 quests to complete for this achievement:

In the Shadow of the Undercroft (Main Quest)
In the Shadow of the Estate (Main Quest)
In the Shadow of the Bloodline (Side Quest)
In the Shadow of the Study (Side Quest)
In the Shadow of Discovery (Side Quest)
In the Shadow of Time (Side Quest)
In the Shadow of Distance (Side Quest)
In the Shadow of the Mine (Main Quest)
In the Shadow of the Mountain (Main Quest)
In the Shadow of Hope (Side Quest)
In the Shadow of the Relic (Side Quest)
In the Shadow of Fate (Side Quest)
The Final Repository (Main Quest)
In the Shadow of Friendship (Side Quest)

For most of his quests, you receive EXP. However, he presents you with options to learn several spells!
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25 Feb 2023 00:00

Like Natty and Poppy, Sebastian Sallow will also have a relationship quest in Hogwarts Legacy. In fact, Sebastian’s relationship questline will be the first one that will be accessible to you.

Not too long after you’ve completed the 24th mainline quest, “In the Shadow of the Estate,” another quest will pop up in your questline for “In the Shadow of the Bloodline.” This is the start of Sebastian’s relationship quest, and to start it you need to speak to him in the Great Hall, in Hogwarts.

Once you’ve finished the quest, “In the Shadow of the Bloodline” another quest will unlock, and so on. Finish all 4 relationship quests and the questline will be complete.

See our full list of Hogwarts Legacy side quests and relationship quests list to get a full rundown of everything.
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This line of quests allows you to learn unforgivable spells.
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23 Feb 2023 10:44

1 Comment
To complete his questline, you need to talk to him after completing the main story.
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By AraimRenmazuo on 17 Feb 2024 22:33
For those who missed receiving Avada Kedavra with Sebastian by choosing the wrong item in the dialogue, do not be upset. After reading the comments of smart people, I thought everything was lost, and I had to play again. But it turns out that it’s enough to talk to Sebastian later and ask him to teach this spell anyway.
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09 Mar 2023 16:34