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Set 70420 Graveyard Mystery
Hidden Side

Graveyard Mystery

Graveyard Mystery (70420) belongs to Hidden Side, the app-linked theme that pairs physical building with an augmented-reality ghost hunt. The set builds a small graveyard scene with a crypt, a bare tree and several headstones, populated by four minifigures. At 336 pieces across 146 unique elements, it sits in the mid-size range for the theme.

Set number
70420
Year
2019
Pieces
336
Minifigures
4
Theme
Hidden Side
Different parts
146
What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 146

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Spare parts (13)

These extra parts come with the set in case one gets lost.

Minifigures 4

Description

A graveyard built from small scenes

Rather than one continuous build, the set is made up of several separate scenery pieces: a crypt, a leaning tree, headstones and low walls that can be arranged freely on a baseplate or shelf. Reddish brown covers the earth, branches and wooden details, light and dark bluish grey handle the stonework, and black ties the whole scene together on fences and small props. That modular approach makes the set flexible for anyone who wants to rearrange the graveyard or combine it with other spooky builds later on.

Four minifigures for the ghost hunt

The set includes four minifigures drawn from the Hidden Side story set around Newbury High, along with small accessories that fit the horror theme. Compared with a pure vehicle or building set, play here leans more towards the scene itself: figures can be moved between the crypt, the tree and the headstones. The Hidden Side app can overlay extra digital ghosts on top of the physical model, but the set builds and plays perfectly well without it, since the app is an optional extra rather than a requirement.

Parts for spooky builds

With 146 unique elements out of 336 pieces total, there is a decent stock of specialised shapes here: headstones, weathered wall sections and an irregular tree that would not look out of place in a ruin or an overgrown garden. Anyone planning their own Halloween or fantasy scenes will find several pieces worth keeping aside once this set is taken apart. The parts list on this page breaks every colour and shape down individually, making it easy to check which of the 146 types suit a particular build.

A shelf-sized haunted diorama

Even away from the Hidden Side storyline, the scene works as a compact haunted diorama for Halloween or fantasy displays, since the dark grey and brown palette suits plenty of other gloomy builds without any need for the companion app. At 336 pieces, the set stays small enough for a permanent spot on a shelf next to other Hidden Side or Halloween-themed sets, while the four minifigures give a small cast of their own for original ghost-hunting scenes.

FAQ

How many minifigures come with Graveyard Mystery (70420)?
The set includes four minifigures from the Hidden Side story.
Do I need the Hidden Side app to play with this set?
No, the physical crypt-and-graveyard scene works on its own; the app only adds optional digital ghost effects on top.
How many pieces does the set have and what are they useful for?
336 pieces across 146 unique shapes, including headstones and ruin-style elements that also suit other Halloween or fantasy builds.

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