Mystery Castle (70437-1) is a Hidden Side LEGO set released in 2020 with 1,035 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 6 minifigures and 314 unique part types.
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Building instructions
Official LEGO instructions — read on BrickID
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Minifigures in Mystery Castle
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Parts in this set
314 parts · page 1 of 7 · updating…
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Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section40379 · ×4 · Black -
Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with Pin, Round Pin Hole40378 · ×2 · Black -
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium87747 · ×4 · Black -
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small53451 · ×2 · Black -
Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - Long13564 · ×5 · Black -
![Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]](https://cdn.rebrickable.com/media/parts/elements/4542590.jpg)
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]48729b · ×1 · Light Bluish Gray -
Bar 3L87994 · ×2 · White -
Bar 4L (Lightsaber Blade / Wand)30374 · ×1 · Reddish Brown -
![Bar 7 x 3 with Double Clips (Ladder) [Straight Clips]](https://cdn.rebrickable.com/media/parts/elements/6030812.jpg)
Bar 7 x 3 with Double Clips (Ladder) [Straight Clips]6020 · ×1 · Reddish Brown -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×2 · Dark Bluish Gray -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×6 · Black -
![Bracket 3 x 2 - 2 x 2 [aka Space Seat]](https://cdn.rebrickable.com/media/parts/elements/459826.jpg)
Bracket 3 x 2 - 2 x 2 [aka Space Seat]4598 · ×1 · Black -
Brick 1 x 13005 · ×25 · Light Bluish Gray -
Brick 1 x 13005 · ×27 · Dark Tan -
Brick 1 x 1 x 314716 · ×1 · Black -
Brick 1 x 1 x 314716 · ×4 · Light Bluish Gray -
Brick 1 x 1 x 5 with Solid Stud2453b · ×2 · Light Bluish Gray -
Brick 1 x 23004 · ×1 · Medium Lavender -
Brick 1 x 23004 · ×7 · Black -
Brick 1 x 23004 · ×17 · Light Bluish Gray -
Brick 1 x 23004 · ×2 · Dark Tan -
Brick 1 x 23004 · ×1 · Dark Bluish Gray -
Brick 1 x 2 x 2 with Inside Stud Holder3245c · ×5 · Light Bluish Gray -
Brick 1 x 2 x 2 with Inside Stud Holder3245c · ×4 · Black -
Brick 1 x 2 x 3 with Bottom Stud Holder22886 · ×3 · Light Bluish Gray -
Brick 1 x 2 x 5 with Hollow Studs2454b · ×1 · Light Bluish Gray -
Brick 1 x 33622 · ×3 · Black -
Brick 1 x 33622 · ×12 · Light Bluish Gray -
Brick 1 x 33622 · ×4 · Dark Bluish Gray -
Brick 1 x 43010 · ×2 · Black -
Brick 1 x 43010 · ×15 · Light Bluish Gray -
Brick 1 x 43010 · ×4 · Dark Tan -
Brick 1 x 43010 · ×1 · Reddish Brown -
Brick 1 x 63009 · ×1 · Light Bluish Gray -
Brick 2 x 23003 · ×1 · Black -
Brick 2 x 2 Corner2357 · ×5 · Light Bluish Gray -
Brick 2 x 33002 · ×1 · Black -
Brick 2 x 33002 · ×3 · Light Bluish Gray -
Brick 2 x 43001 · ×1 · Dark Tan -
Brick 2 x 43001 · ×2 · Light Bluish Gray -
Brick and Axle Separator v2.096874 · ×1 · Dark Turquoise -
Brick Arch 1 x 34490 · ×2 · Light Bluish Gray -
![Brick Arch 1 x 3 x 3 [Gothic]](https://cdn.rebrickable.com/media/parts/elements/6038531.jpg)
Brick Arch 1 x 3 x 3 [Gothic]13965 · ×2 · Black -
![Brick Arch 1 x 3 x 3 [Gothic]](https://cdn.rebrickable.com/media/parts/elements/6225228.jpg)
Brick Arch 1 x 3 x 3 [Gothic]13965 · ×4 · Light Bluish Gray -
Brick Arch 1 x 43659 · ×4 · Light Bluish Gray -
Brick Arch 1 x 43659 · ×1 · Dark Tan -
![Brick Arch 1 x 5 x 4 [Continuous Bow, Raised Underside Cross Supports]](https://cdn.rebrickable.com/media/parts/elements/6075062.jpg)
Brick Arch 1 x 5 x 4 [Continuous Bow, Raised Underside Cross Supports]14395 · ×2 · Black -
![Brick Arch 1 x 5 x 4 [Continuous Bow, Raised Underside Cross Supports]](https://cdn.rebrickable.com/media/parts/elements/6075066.jpg)
Brick Arch 1 x 5 x 4 [Continuous Bow, Raised Underside Cross Supports]14395 · ×14 · Light Bluish Gray