The Lego set Sphinx Secret Surprise with the set number 5978 is part of the LEGO Adventurers theme. It was released in January 1998. It includes 7 minifigures. The model has 347 pieces, and we estimate it takes around < 1 hour to build. 20 Brickfact users have this set in their collection.
The box measures 38.4 x 28.8 x 7.2 cm. The recommended retail price is $50.00.
Lego 5978 product data
Set Information
Availability
Release
01/1998
Retiring Status
Retired (12/1999)
Price Information
RRP
$50.00
Insiders Points (for purchase at Lego)
325
Popularity with Brickfact users
- users have this set
- 20
20 Brickfact users have Sphinx Secret Surprise in their collection.
Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of October 31, 2026.
LEGO 5978 price trend
Average sale price on secondary marketplaces – not the new price at retailers.
- Current market value
- $482.34
- Growth vs. RRP
- +865 % $50.00
- Range
- $482.34 – $482.34
- Average
- $482.34
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Part Lists for LEGO 5978 Sphinx Secret Surprise
LEGO 5978 Frequently Asked Questions
Is LEGO 5978 still available?
LEGO has retired 5978 Sphinx Secret Surprise, and no retailer in our price comparison currently sells it new. Its market value on secondary marketplaces is $482.34.
