LEGO Hidden Side Sets
32+ sets · 2019–2020
About LEGO Hidden Side
LEGO Hidden Side is a theme haunted locations with augmented reality ghost-hunting gameplay. The theme is aimed primarily at children, with minifigures and play features central to most sets. The line has produced 32 sets between 2019 and 2020, with the Newbury Haunted High School (#70425) as one of its largest at 1,475 pieces.
Notable Hidden Side Sets
Newbury Haunted High School
#70425 · 2019 · 1,475 pcs
Mystery Castle
#70437 · 2020 · 1,035 pcs
Phantom Fire Truck 3000
#70436 · 2020 · 760 pcs
Ghost Train Express
#70424 · 2019 · 699 pcs
Paranormal Intercept Bus 3000
#70423 · 2019 · 689 pcs
Shrimp Shack Attack
#70422 · 2019 · 579 pcs
The Lighthouse of Darkness
#70431 · 2020 · 548 pcs
Haunted Fairground
#70432 · 2020 · 474 pcs
Newest Hidden Side Releases
The most recent Hidden Side sets from the LEGO catalogue.
Mystery Castle
#70437 · 2020 · 1,035 pcs
Phantom Fire Truck 3000
#70436 · 2020 · 760 pcs
The Lighthouse of Darkness
#70431 · 2020 · 548 pcs
Haunted Fairground
#70432 · 2020 · 474 pcs
Newbury Abandoned Prison
#70435 · 2020 · 400 pcs
Newbury Subway
#70430 · 2020 · 356 pcs
El Fuego's Stunt Plane
#70429 · 2020 · 303 pcs
Supernatural Race Car
#70434 · 2020 · 244 pcs
Rare & Retired Hidden Side Sets
Older flagship-tier Hidden Side sets that are likely no longer in production. Often valuable to collectors.
Newbury Haunted High School
#70425 · 2019 · 1,475 pcs
Mystery Castle
#70437 · 2020 · 1,035 pcs
Phantom Fire Truck 3000
#70436 · 2020 · 760 pcs
Ghost Train Express
#70424 · 2019 · 699 pcs
Paranormal Intercept Bus 3000
#70423 · 2019 · 689 pcs
Shrimp Shack Attack
#70422 · 2019 · 579 pcs
The Lighthouse of Darkness
#70431 · 2020 · 548 pcs
Haunted Fairground
#70432 · 2020 · 474 pcs
Best Hidden Side Sets for Beginners
Smaller Hidden Side sets that are good entry points without overwhelming a first-time builder in this theme.
Browse Hidden Side by Size
Every Hidden Side set grouped by piece count — pick the size that matches the build time you have.
Starter (≤50 pieces)
8 shownSmall, quick builds — usually under 20 minutes.
Quick (51–150 pieces)
2 shownCompact sets finished in a single sitting.
Moderate (151–400 pieces)
8 shownAfternoon builds with enough depth to feel substantial.
Newbury Abandoned Prison
#70435 · 2020 · 400 pcs
Newbury Subway
#70430 · 2020 · 356 pcs
Graveyard Mystery
#70420 · 2019 · 336 pcs
Wrecked Shrimp Boat
#70419 · 2019 · 311 pcs
El Fuego's Stunt Plane
#70429 · 2020 · 303 pcs
Supernatural Race Car
#70434 · 2020 · 244 pcs
J.B.'s Submarine
#70433 · 2020 · 224 pcs
Welcome to the Hidden Side
#70427 · 2020 · 189 pcs
Substantial (401–800 pieces)
7 shownMulti-hour builds across several numbered bags.
Phantom Fire Truck 3000
#70436 · 2020 · 760 pcs
Ghost Train Express
#70424 · 2019 · 699 pcs
Paranormal Intercept Bus 3000
#70423 · 2019 · 689 pcs
Shrimp Shack Attack
#70422 · 2019 · 579 pcs
The Lighthouse of Darkness
#70431 · 2020 · 548 pcs
Haunted Fairground
#70432 · 2020 · 474 pcs
El Fuego's Stunt Truck
#70421 · 2019 · 429 pcs
Advanced (801–1,500 pieces)
2 shownSerious projects — typically spanning multiple sessions.
Hidden Side Through the Decades
A sample of notable Hidden Side sets from each decade the theme has been in production.
2020s
LEGO Hidden Side FAQ
See Also
👨👩👧 Parent guides
Age-matched buying guides, gift recommendations, and practical advice for parents choosing LEGO sets for children of every age.
🔍 Identify guides
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🎨 Browse all themes
Over 100 LEGO themes with editorial pages
📷 Identify a Hidden Side set
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