Graveyard Mystery #70420 — LEGO Hidden Side Set Value

LEGO Hidden Side

What the Graveyard Mystery #70420 LEGO set is worth — loose, complete, and sealed.

Graveyard Mystery #70420 value — Loose $20 · Complete (CIB) $25 · Sealed (new) $36. Prices updated August 2026.

Theme · LEGO Hidden Side
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Item details

Brand
LEGO
Theme
LEGO Hidden Side

Graveyard Mystery #70420 (LEGO Hidden Side) resale value

A loose Graveyard Mystery #70420 set runs around $20, a complete copy (all pieces + box + instructions) about $25, and a factory-sealed box commands $36.

What drives the price

Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.

Price guide

What this actually trades for — sold values by condition vs. what sellers are asking today

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ConditionValueBased on
Loose$20eBay sold comps
Complete (CIB)$25eBay sold comps
Sealed (new)$36eBay sold comps

Frequently asked questions

What is the best deal for buying this LEGO set?
The best value depends on your needs; loose is the most affordable at $18, while sealed offers the newest condition for $33.
Is the complete in box version worth buying?
Yes, the complete (CIB) version is available for $22, offering a good balance between condition and price.
How much does the brand new, sealed version cost?
The sealed, brand new version of Graveyard Mystery #70420 is listed for $33.

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