Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece
and leave with the element ID LEGO asks for, or a link to buy the part.
345 pieces in 107 part and color combinations, plus 3 minifigures.
The official piece count includes the 19 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.
Before you call it missing
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
Look-alike colors in this set
These parts appear in this set in two colors that are easy to confuse. If you are one short in one color,
check whether it went in where the other color belongs. Each color has its own element ID in the parts list
at the back of the instructions.
Brick Curved 2 x 2 x 2/3Black ×6Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Sloped Inverted 45° 2 x 2 [Round Hollow Bottom Pin, Bar-sized Stud Holes]Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile Special 2 x 3 PentagonalBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×3
White
3 pieces
Bracket 1 x 2 - 1 x 2WhitePart 99781Element 6552141 or 6548275×1
Plate Special 1 x 2 with Clip Horizontal on EndWhitePart 63868Element 6361170 or 4535737×2
Lime
2 pieces
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, MediumLimePart 87747Element 63112151 spare in the box×1
Plate Round 1 x 1 with Open StudLimePart 85861Element 61902511 spare in the box×1
Trans-Red
2 pieces
Projectile, Spring Shooter Ammunition 8L BarTrans-RedPart 15303Element 6287550 or 6054526×2
Dark Red
1 piece
Weapon Sword with Jagged Edges, Double Axle Hole with Marbled Trans-Orange PatternDark RedPart 79895pat0001Element 6514437 or 6484298×1
Trans-Bright Green
1 piece
Minifig Head [Plain] [Vented Stud - 2 Holes]Trans-Bright GreenPart 28621Element 6513994 or 6276022×1
Minifigures
3 figures
Acid Monster, TailMinifigure, checked as a whole figure×1
Zane (Draconus Form)Minifigure, checked as a whole figure×1
Cole (Draconus Robes)Minifigure, checked as a whole figure×1
Tick each piece as you find it, or mark it missing.
When a piece really is missing
Ask LEGO
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for
the set number and each piece's element ID, the number printed beside the piece in the parts list at the back
of the instructions. This checker lists both.
Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from
older or second-hand sets.
Keep a record
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick
pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.