LEGO Masters' Book of Secrets 5006978-1
LEGO Masters' Book of Secrets (5006978-1) is estimated at about $24 sealed as of Sep 2026. Retired 2021 · 2021 Books. Track its value and price history.
- Set number
- 5006978-1
- Theme
- Books
- Subtheme
- Dorling Kindersley
- Year
- 2021
- Minifigures
- 0
- Market value
- $24 (Estimate, Sep 2026)
- Released
- 2021
- Retirement
- Retired in 2021
Masters' Book of Secrets value by year
From $18 in 2021 to $24 (Estimate, Sep 2026): +36%. Its highest year was 2023, at $22.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $24 | +31.5% |
| 2026 (so far) | $18 | −0.5% |
| 2025 | $18 | −10.1% |
| 2024 | $21 | −4.6% |
| 2023 | $22 | +58.2% |
| 2022 | $14 | −23.8% |
| 2021 | $18 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Masters' Book of Secrets (5006978-1) worth?
LEGO Masters' Book of Secrets is worth approximately $24 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Masters' Book of Secrets retired?
Yes — Masters' Book of Secrets (5006978-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Why is LEGO Masters' Book of Secrets so expensive?
Masters' Book of Secrets was released in 2021 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.
Related LEGO sets
- LEGO Minifigure: A Visual History, New Edition ISBN9780241409695-1
- LEGO Minifigure Year by Year: A Visual History ISBN9781409333128-1
- LEGO Minifigure: A Visual History, Updated and Expanded ISBN9798217126040-1
- LEGO Timelines ISBN9780593844168-1
- LEGO Star Wars: Battle for the Stolen Crystals: Brickmaster ISBN9781409326052-1
- LEGO Marvel: Visual Dictionary ISBN9780241621424-1