The Lighthouse of Darkness
70431-1 Hidden Side 2020 548 parts 9.3% repair risk Intermediate
The LEGO Hidden Side The Lighthouse of Darkness 70431-1 set plunges builders into the supernatural mysteries of Newbury with 548 pieces. This detailed lighthouse model integrates directly with a smart device, where interaction with the physical structure triggers augmented reality events. Aspiring ghost hunters can explore a digital world by scanning the lighthouse, revealing hidden clues and spectral activity within its modular design. The set depicts the haunted lighthouse, complete with 5 minifigures ready for action, including the formidable boss ghost Joe Ishmael. Its unique play function involves manipulating parts of the lighthouse to influence the digital experience, such as a rotating top section that reveals hidden features. This convergence of tangible bricks and digital ghost-hunting provides an engaging, ever-evolving challenge against the spectral inhabitants of Newbury.
Parts Inventory
| Part | Qty | LEGO price each |
|---|---|---|
![]() Brick Special 1 x 2 with 2 Studs on 1 Side 11211 | 5× | €0,13 |
![]() Plate Special 1 x 2 with Clip Horizontal on Side 11476 | 1× | Check price → View |
![]() Slope Curved 2 x 1 No Studs [1/2 Bow] 11477 | 4× | €0,06 |
![]() Weapon Spear Gun with Squared Trigger and Thick Spear Base 13591 | 1× | €0,22 |
![]() Brick 1 x 1 x 3 14716 | 2× | €0,13 |
![]() Slope Curved 2 x 2 x 2/3 15068 | 2× | €0,13 |
![]() Plate Special 1 x 1 with Vertical Tooth 15070 | 1× | €0,10 |
![]() Fence Spindled 1 x 4 x 2 [4 Top Studs] 15332 | 1× | €0,39 |
![]() Large Figure Limb Cover / Claw / Spike Large with Axle 15362 | 2× | Check price → View |
![]() Tile Round 2 x 2 with Hole 15535 | 2× | €0,07 |
![]() Slope 45° 2 x 1 Triple with Inside Stud Holder 15571 | 1× | €0,10 |
![]() Slope 45? 2 x 1 with 2/3 Cutout [New Version] 15672 | 1× | €0,05 |
Repairability
Can you fix The Lighthouse of Darkness if a piece goes missing?
23 of the 246 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.
Theme average
7.4%
All sets
6.7%
Hardest to replace
More Hidden Side sets
Browse more LEGO Hidden Side sets related to The Lighthouse of Darkness, including models from 2020 and other sets in the same theme.
Build DNA
Parts inventory insights for The Lighthouse of Darkness
548 pieces puts this build +31% against the average Hidden Side set and +22% against the average 2020 release.
Vs average Hidden Side set
Average Hidden Side set: 418 pieces across 22 other sets.
Vs average 2020 set
Average 2020 set: 448 pieces across 450 other sets.
Color profile
Dominant color
White
Unique parts
0.1 pieces per unique type
Repeat factor
Average pieces per unique type.
Most used part
Plate Special 1 x 2 [Top Clip]
18xResults are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.
This site is not affiliated with or endorsed by the LEGO Group.





![Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6031787.jpg)




![Fence Spindled 1 x 4 x 2 [4 Top Studs]](https://cdn.rebrickable.com/media/parts/elements/6066114.jpg)



![Slope 45? 2 x 1 with 2/3 Cutout [New Version]](https://cdn.rebrickable.com/media/parts/elements/6093859.jpg)