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LEGO Harry Potter Hogwarts Potion Mistake Castle Set 76386942/5318

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LEGO Harry Potter Hogwarts Potion Mistake Castle Set 76386
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  • £18.00

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About this product

Kids get to transform their favourite Harry Potter characters with Polyjuice Potion in the Hogwarts bathroom. But watch out! Sometimes the magic can go wrong! A great LEGO Harry Potter playset that lets kids conjure up magical adventures of their own.

LEGO® model number: 76386 - for ages 7 years and over.

Theme: LEGO Harry Potter.

  • Features a buildable Moaning Myrtle's bathroom - that famous scene - where kids get to practise Harry Potter potion spells, plus lots of authentic accessories.
  • Kids can transform their favourite Harry Potter characters into Vincent Crabbe & Gregory Goyle, but sometimes the magic fails! See how Hermione becomes a cat when the polyjuice potion goes wrong.
  • Kids turn Harry, Hermione & Ron minifigures' heads to reveal an alternative face, add a different hairpiece, and the transformation is done.
  • Includes Harry Potter, Hermione Granger and Ron Weasley minifigures, and 2 random wizard card tiles for kids to collect (out of 16 in total).
  • This LEGO Harry Potter toy for boys and girls includes an exclusive, golden Harry Potter minifigure to celebrate 20 years of Harry's magic.
  • LEGO Harry Potter Hogwarts: Polyjuice Potion Mistake (76386) castle building set inspires magical adventures in the Hogwarts bathroom involving Harry Potter potions. Combine with the LEGO Harry Potter Hogwarts Chamber of Secrets for even more play possibilities. Young witches and wizards join Harry Potter, Ron Weasley and Hermione Granger as they brew powerful Polyjuice potion. The set measures over 3 in. (8 cm) high, 5 in. (12 cm) wide and 2.5 in. (6 cm) deep. Contains 217 pieces.
  • Includes 217 pieces.


  • Box size H14.1, W26.2, D7.2cm.

General Information:

  • For ages 7 years and over.
  • EAN: 5702016913507.


  • Not suitable for children under 3 years old.
  • Only for domestic use.

The small print

*Prices correct as displayed but are subject to change.

The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.