This minding your own business Hogwarts Legacy walkthrough covers one of the game’s strangest and most memorable side quests. What starts as a simple business deal — buy a vacant shop in Hogsmeade — spirals into a haunted underground dungeon, a mischievous poltergeist named Fastidio, living mannequins, and a boss fight against the shop’s former owner. It is part commerce, part horror, and entirely worth your time.
The hogwarts legacy minding your own business walkthrough below walks you through every objective in order: starting the quest with Penny the house-elf, buying the shop from Cassandra Mason, surviving the cellar dungeon, beating both boss fights, and claiming your rewards. Follow it step by step and you will own Hogsmeade’s most haunted — and most profitable — shop.
Quest Overview and Requirements
Before you start this minding your own business Hogwarts Legacy walkthrough, make sure you meet the requirements:
- Quest giver: Penny, a house-elf standing outside a vacant shop in Hogsmeade.
- Recommended level: Around level 25.
- Requirement: Progress through the main story past the second trial — you need to have learned the Transformation spell (the quest unlocks after the main quest “Fire and Vice”).
- Platform note: This quest launched as a PlayStation (PS4/PS5) exclusive. Since February 10, 2024 — a year after the game’s release — it has been available on all platforms.
- Useful spells: Reparo, Lumos, Wingardium Leviosa, Accio, plus your best combat spells (Incendio, Confringo, Bombarda) and Protego for the fights.
Step 1: Speak With Penny in Hogsmeade
Head to Hogsmeade and look for Penny, a house-elf standing outside a vacant shop on the village’s eastern side. She will flag you down and explain that the shop’s owner, Cassandra Mason, is selling the property — and she offers her services as your house-elf if you buy it. Accept, and the quest begins.
Step 2: Speak With Cassandra Mason
Follow the quest marker to the northern part of Hogsmeade to find Cassandra Mason. She will ask if you are interested in purchasing her shop, though she doubts someone your age can manage a business. During the conversation, choose the patient dialogue option (“I’ll think about it a little”) and she will name her price.
Step 3: Collect 1,500 Gold
Cassandra wants 1,500 Galleons for the shop. If you are short, sell unwanted gear at existing shops, open eyeball chests, or sell captured beasts. Once you have the gold, return to Cassandra and complete the purchase. The shop is yours — or so you think.
Step 4: Clean Up and Make Repairs
Return to Penny and tell her the shop is bought. Head inside your new property and use Reparo on the highlighted piles of broken furniture to fix the place up. Once the shop is clean, talk to Penny again — she will hand you a key to a mysterious chest in the back room. This is where the quest takes its turn.
Step 5: Open the Mysterious Chest and Descend
Follow the quest marker to the back room and open the chest. A cutscene plays: the chest reveals a ladder descending into darkness. Climb down — the ladder vanishes behind you, so there is no going back. You are now in a spooky underground cellar, and the real quest begins.
Step 6: Explore the Cellar — The Mannequin Room
Follow the path forward into the first room, where you will find a small chest containing an elf-sized hat. Take it. When you turn to leave, the door slams shut, the lights begin flickering, and the mannequins in the room start moving. A taunting voice — Fastidio, a poltergeist — begins speaking to you.
Cast Lumos to light the room and search the walls until a hidden door reveals itself. Go through it. Fastidio will fly past, slamming doors open in a long hall — follow to the door at the end, which opens into a torture-dungeon-like chamber. Keep pushing forward through the shifting rooms until you reach a room with double doors and lanterns.
The lantern puzzle
At the double doors, use Wingardium Leviosa (or Accio, depending on your version) to grab the lantern on the right side of the room and hang it on the hand-shaped hook to the right of the door. The door unlocks. This lantern-hanging mechanic repeats throughout the dungeon — whenever you see double doors with empty hooks, find a nearby lantern and hang it.
Step 7: Explore the Library
After meeting Fastidio properly — he introduces himself in a cutscene — you will face two doors: one to the atrium, one to the library. The order does not matter much; each unlocks one lock on the big foyer door. In the library, work through lantern puzzles in side hallways (hang lanterns on the double doors to open them), and watch for a giant chess-board floor where stepping on the wrong squares drops you through. When Fastidio attacks, dodge the flying furniture until the sequence ends, then return to the foyer — the first lock is now open.
Step 8: Explore the Atrium and Play With the Poltergeist
Head through the second door into the atrium. More lantern puzzles, more shifting rooms, and another confrontation: Fastidio hurls floating furniture at you while possessed mannequins attack. Destroy the mannequins with damage spells (Confringo, Incendio, Bombarda — basic casts do not work on them, so use your heavy hitters), dodge or blast the furniture, and survive until Fastidio retreats. Return to the foyer and watch the second lock open.
Combat tips for the dungeon
- Mannequins have no health bars and ignore basic attacks — use fire and explosive spells.
- Keep Lumos ready: darkness hides doors and lanterns throughout the dungeon.
- Stock potions: Wiggenweld for healing, and consider Edurus for the boss fights ahead.
- Dodge the furniture: Fastidio’s thrown objects hurt — Protego and dodge-rolls are your friends.
Step 9: Venture Beyond the Foyer Doors — Challenge Fastidio
With both locks open, go through the big foyer doors and follow the path to a graveyard. A cutscene plays, and then the boss fight begins: Fastidio’s Monster, a hulking creature assembled from furniture.
The monster has three health stages. Each time you deplete a stage, it collapses and reforms, summoning mannequins to support it — kill the mannequins first so they do not chip you down. The final stage flips the arena upside down, making the controls disorienting; stay calm, keep dodging, and finish it. Defeated, Fastidio acknowledges your strength, and you climb back up to the shop.
Step 10: Speak to Penny, Then Officer Singer
Back in the shop, confront Penny — she knew something was wrong down there and was forbidden from warning you. She will be genuinely sorry and suggest you report everything to Officer Singer, who is waiting by the tree at Hogsmeade Square. Speak with Singer and recount what happened.
Step 11: Confront Cassandra Mason (Boss Fight)
You and Officer Singer confront Cassandra — and she attacks. This is the second boss fight, and it has three stages:
- Stage 1: Straightforward spell combat. Dodge her attacks and hit her with your best damage spells.
- Stage 2: She raises a magical barrier. Counter the rocks and debris she throws at you to drop the barrier temporarily — that is your damage window.
- Stage 3: She starts teleporting around the arena. Stay patient, wait for the rock-throwing moments to break her barrier, and punish.
Defeat her and a cutscene plays: Officer Singer restrains Cassandra, who will be taken to Azkaban, and confirms that all the paperwork will be handled to grant you full ownership of the shop — and of Penny’s service.
Step 12: Return to the Shop and Finish
Head back to your shop and speak with Penny one last time. You will have the option to give her clothing — setting a house-elf free — but Penny insists on staying and running the shop with you regardless. The quest completes.
Rewards: What You Get
Completing this minding your own business Hogwarts Legacy walkthrough earns you one of the best reward packages of any side quest:
- Your own Hogsmeade shop — run by Penny, where you can sell your gear and items at better prices than regular vendors (roughly a 10% bonus on sales).
- Shopkeeper’s Cosmetic Set — the Shopkeeper’s Coat, Shopkeeper’s Top Hat, and Shopkeeper’s Ensemble.
- Felix Felicis potion recipe (per the Fextralife wiki’s reward listing).
- The right to name your shop — a small but delightful touch.
The shop alone makes this quest worth doing: a permanent, better-paying vendor run by your own house-elf is an economic advantage for the rest of the game.
Original Insight: Why This Quest Works
Most side quests in open-world games are errands. This one is a short horror game wearing a business suit — and that genre whiplash is the point. The quest uses your greed (a shop! profits!) as bait, then punishes your curiosity with one of the creepiest dungeons in the game. It is also a quiet character study: Penny’s guilt, Cassandra’s ruthlessness, Fastidio’s lonely mischief. Few side quests earn their runtime this well. Do not skip it.
Minding Your Own Business FAQ
How do I start Minding Your Own Business in Hogwarts Legacy?
Talk to Penny the house-elf outside the vacant shop in eastern Hogsmeade. You need to have progressed past the second trial and learned the Transformation spell (after main quest “Fire and Vice”), and be around level 25.
How much does the shop cost in Minding Your Own Business?
1,500 Galleons, paid to Cassandra Mason in northern Hogsmeade. Sell unwanted gear or beasts if you are short.
Who is Fastidio in Hogwarts Legacy?
Fastidio is a mischievous poltergeist haunting the cellar beneath the Hogsmeade shop. He controls the shifting dungeon, animates the mannequins, and serves as the quest’s penultimate boss in the form of Fastidio’s Monster.
How do you beat Fastidio’s Monster?
Use heavy damage spells (Confringo, Incendio, Bombarda), kill the summoned mannequins first in each stage, and survive the upside-down final phase by staying calm and dodging.
What do you get for completing Minding Your Own Business?
Your own Hogsmeade shop (better sell prices), the Shopkeeper’s Cosmetic Set, the Felix Felicis potion recipe, and Penny as your shopkeeper — plus the ability to name your shop.
Was Minding Your Own Business PlayStation exclusive?
Yes, at launch it was exclusive to PS4 and PS5. Since February 10, 2024, it has been available on all platforms.
Conclusion
This minding your own business Hogwarts Legacy walkthrough has taken you from Penny’s pitch to Cassandra’s defeat: the 1,500-Galleon purchase, the Reparo cleanup, the mannequin-haunted cellar, the lantern puzzles, the library and atrium, Fastidio’s Monster, Officer Singer, and the final confrontation. The reward — your own profitable Hogsmeade shop — is one of the game’s best.
For an alternative reference with maps and screenshots, see Fextralife’s Minding Your Own Business wiki page. And for more quest guides and gaming deep-dives, browse our gaming adventures archives. Enjoy your new shop — mind the mannequins.