Harry Potter Cauldron: Secret Potions Classroom By Lego

Delight young witches and wizards with this spellbinding LEGO® Harry Potter™ building set, designed for both imaginative play and magical display. At first glance, it appears as a brick-built bubbling cauldron, but inside hides a secret Hogwarts™ potions classroom waiting to be revealed. Simply move the stirring stick to open the cauldron and uncover a richly detailed learning space inspired by Professor Snape’s™ iconic lessons.

Inside the classroom, kids will find removable tables for easy play, a blackboard, and shelves filled with potion bottles and LEGO® ingredients used to brew Wolfsbane Potion, Polyjuice Potion, and Love Potion. The set includes 2 LEGO® Harry Potter™ minifigures—Professor Snape™ and Hermione Granger™, each with a wand accessory—so young fans can recreate magical moments from class or invent new spellbinding stories.

Special collector details make this set even more enchanting. Look out for Hermione’s Otter Patronus™, part of the LEGO® Harry Potter™ 25th anniversary Patronus collection (in sets sold separately), along with 1 of 14 collectible Hogwarts™ portraits hidden inside.

When playtime ends, the closed cauldron becomes a striking Harry Potter room décor piece and a fun Halloween decoration, making it perfect for shelves, desks, or display corners.

Builders can enjoy a smooth and guided experience using the LEGO® Builder app, which provides interactive 3D instructions with zoom, rotation, and progress tracking. This versatile model kit makes a creative gift for girls, boys, and Harry Potter fans aged 10 years and up, and is also suitable for older kids who enjoy detailed fantasy builds.

Key Features

• Display and play in one model: A bubbling cauldron that opens to reveal a secret potions classroom

• Hidden classroom action: Move the stirring stick to uncover removable tables, blackboard, potion bottles, and ingredients

• 2 minifigures included: Professor Snape™ and Hermione Granger™, each with a wand

• Magical collector details: Hermione’s Otter Patronus™ and 1 of 14 collectible Hogwarts™ portraits

• Creative gift idea: Ideal for Harry Potter™ fans aged 10+ who love fantasy adventures

• Digital building support: Interactive 3D instructions via the LEGO® Builder app

• Expandable world: Part of the wider LEGO® Harry Potter™ collection (sets sold separately)

What’s in the Box

• 652 LEGO® pieces

• Magic cauldron with secret classroom

• 2 minifigures and potion accessories

• Patronus™ element and collectible Hogwarts™ portrait

Dimensions (Completed Model)

• Height: over 7.5 in. (20 cm)

• Width: 5.5 in. (14 cm)

• Depth: 5 in. (13 cm)

Perfect For

• Kids aged 10 years and up

• Fans of Harry Potter™ and Hogwarts™ magic

• A creative birthday gift, display piece, or festive Halloween decoration

Turn potion-making into an adventure and bring Hogwarts™ magic home with this cleverly concealed classroom inside a bubbling cauldron.

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Made in Czech Republic