Overview:
Professor Weasley wants to teach you how to customise the Room of Requirement by gathering Moonstone and using Conjuration spells.
Quest Requirements:
Main Quest Completion: The Room of Requirement
Quest Steps:
1. Speak with Professor Weasley:
Meet Professor Weasley in the Room of Requirement to begin decorating.
2. Gather Moonstone:
You need 15 Moonstones to proceed. (If you already have 15 Moonstones, you can immediately proceed to the next step.)
Vanish items in the Room of Requirement using Evanesco to collect Moonstone.
Find Moonstone in the open world, commonly found around Hogwarts.
3. Return to Professor Weasley:
Once you have the required Moonstone, return to Professor Weasley.
4. Conjure Wall Decorations (x5):
Cast the Conjuring Spell and open the Room of Requirement Artwork category.
Place five wall decorations (can be the same item).
5. Conjure Floor Decorations (x5):
Cast the Conjuring Spell and open the Decorations category.
Place five floor decorations anywhere in the room.
6. Speak to Professor Weasley:
Once you have placed the decorations, speak with Professor Weasley again. She will teach you the Altering Spell, allowing you to modify furniture and decorations.
7. Alter the Style of an Item:
Aim at any painting you placed.
Cast the Altering Spell and choose an alternative design.
8. Change the Colour of an Item:
Aim at any floor decoration you placed earlier.
Cast the Altering Spell and select a new colour.
9. Adjust the Size of an Item:
Aim at a painting and cast the Altering Spell.
Adjust its size to small, medium, or large.
10. Alter the Balcony or Floor:
Aim at the balcony or floor of the Room of Requirement.
Cast the Altering Spell and select a new design.
11. Speak to Deek:
Talk to Deek, who will let you change the room’s atmosphere.
Select any ambiance option to complete the quest.
A cutscene will play.
Rewards:
Altering Spell
Conjuration Spellcraft x2
180 XP
This completes the Interior Decorating side quest in Hogwarts Legacy.
For all other side quests and main quests, check out the complete Hogwarts Legacy walkthrough.