If you've been in and around your Hogwarts Legacy common room, you will have encountered a mysterious chest called the 'House Chest.' This chest requires 16 House Tokens to unlock, rewarding players with a unique cloak.

To get these tokens, you must find 16 Daedalian keys scattered throughout the Hogwarts castle. You find the keys and follow them to their locked cabinet.

You then play a small mini-game to unlock the cabinet. The mini-game is quite simple. All you need to do is 'slap' the key when it passes over the keyhole on the cabinet.

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It would be best to learn the Alohomora unlock spell to access some keys, as they are locked behind doors and not accessible otherwise. You can get the Alohomora spell by talking to Gladwin Moon in the Faculty Tower located in the South Wing. It is automatically given as part of The Caretaker's Lunar Lament main quest.