Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters
76456-21·City·2025·6 parts
About Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters
Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters (76456-21) is a LEGO City set from 2025 valued at $0.90 on BrickLink. It contains 6 cataloged parts.
Seller notes
- Sealed copies sell for $2.03 vs $0.90 used — a 125% premium. If you have this set new in sealed box (NISB), price it accordingly.
Parts (6)
Common questions about Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters
How much is LEGO Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters (76456-21) worth?
Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters sells for an average of $0.90 used and $2.03 new/sealed on BrickLink based on 6 months of completed sales. Current retail availability may affect secondary market prices. Actual prices vary with completeness — missing minifigures or key parts will lower the value.
Is LEGO Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters (76456-21) retired?
Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters was released in 2025. It should still be widely available at retail from LEGO and authorized retailers.
How do I check if my Advent Calendar 2025, Harry Potter (Day 20) - Monster Book of Monsters set is complete?
Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.