Progressing through Sebastian Sallow’s questline in Hogwarts Legacy allows you to dive right into Slytherin and Dark Arts lore. Here’s how to open all Slytherin locks in Hogwarts Legacy.
How to Start Sebastian Sallow’s Questline in Hogwarts Legacy
You’ll eventually meet Sebastian Sallowas you progress through the main story. He is hanging out in the Slytherin common rooms at first. His first quest is In the Shadow of the Undercroft. You’ll need to first complete your Flying Class, which will unlock Sebastian’s questline for you. Beating it will give you the spell Confringo.
Opening All Slytherin Locks in Hogwarts Legacy – In the Shadow of the Study Quest Guide
After you light the three braziers, unlock the first entrance, and enter the underground passage,you’ll spot locked gates and snake statues.You’ll also see symbols on both, which you can interact with on the latter to progress through each puzzle. Each serpent statue has a torch next to it, which you’ll have to light up with Confringo or Incendio to activate.
As you find each door,pay attention to the two symbols and line them up on the serpent statues.Since some are scratched out and hard to see, you’ll have to use contextual clues a few times to match them. When you’re ready, interact with the snake lock and turn the dials until you get the same combination as the door.

For example, with the door below, you’d have to turn the dials on the nearby serpent lock until you find the circle on the top and the infinity symbol at the bottom. Doing this will open the door, allowing you to progress further into the dungeon.
Related:Hogwarts Legacy Discover the Secret of the Antechamber Quest Guide
There are three doors in all that you’ll find in this dungeon:
By unlocking all three gates, you can progress further into the questand get closer to entering the Scriptorium!
Hogwarts Legacy is available on PC, PlayStation 4, PlayStation 5, Xbox Series X|S, Xbox One, and Nintendo Switch through theofficial website.
Madison Benson
Madison was a staff writer at Prima Games who has played video games for over twenty years and written about them for over two years. Her love for video games started with turn-based strategy games like Heroes of Might and Magic and has since extended to casual farming sims, MMORPGs, and action-adventure RPGs.