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.
1,012 pieces in 301 part and color combinations, plus 7 minifigures.
The official piece count includes the 49 parts inside the set's minifigures, which this inventory lists separately; the remaining difference of 1 piece is within the tolerance of the catalog data.
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 Special 1 x 2 with Vertical Clip [Open O Clip]Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×3Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 Side Handle [Free Ends]Black ×2Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Wedge Plate 4 x 4 Cut CornerBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud]BlackPart 60475bElement 6336977 or 4533771×6
Brick Special 1 x 2 with 2 Studs on 1 SideBlackPart 11211Element 6138173×3
Brick Special 1 x 2 with HandleBlackPart 30236Element 4288212 or 4113243×1
Brick Special 1 x 2 with Vertical Clip [Open O Clip]BlackPart 30237bElement 6330197 or 6092876Also in Dark Bluish Gray×4
Brick Special 1 x 4 Palisade [aka Log]BlackPart 30137Element 6230228 or 4121915×4
Brick Wedged 3 x 4 [Stud Notches]BlackPart 50373Element 6290416 or 6146307×1
Brick Wedged, Curved 1 x 2 x 2/3 No Studs, Wing EndBlackPart 47458Element 6375706 or 4218581×2
Brick Wedged, Curved 2 x 2 with Stud NotchesBlackPart 66956Element 6308912×2
Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 StudsBlackPart 45677Element 4191191×1
Creature Body Part, Barb Large (Claw, Talon) with ClipBlackPart 16770Element 6254273 or 6177168×2
Creature Body Part, Dragon Head Upper Jaw with 4 Studs on Top and Gold TeethBlackPart 72224pr0001Element 6334086×1
Creature Body Part, Dragon Head Upper Jaw with 4 Studs on Top and Gold Teeth, Dark Turquoise Markings, Red Eyes PrintBlackPart 72224pr0004Element 6341959×1
Door Frame 1 x 4 x 6 Type 2BlackPart 60596Element 6337273 or 4535834×1
Equipment Magnifying Glass with Thick Frame, Hollow Handle, Trans-Clear Lens PatternBlackPart 38648pat0001Element 6499140 or 6325525×1
Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]Flat SilverPart 21459Element 61165931 spare in the box×1
Dark Blue
2 pieces
Lower Body, Ghost with Marbled Trans-Light Blue PatternDark BluePart 65227pat0001Element 6343980×1
Tile 2 x 4 with GrooveDark BluePart 87079Element 4569836×1
Trans-Dark Blue
2 pieces
Projectile, Spring Shooter Ammunition 8L BarTrans-Dark BluePart 15303Element 6296379 or 6065898×2
Light Aqua
1 piece
Animal, Stingray with Dark Blue Markings, Red Eyes PrintLight AquaPart 67337pr0002Element 6341731×1
Magenta
1 piece
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]MagentaPart 2654Element 6143445×1
Opal Trans-Clear
1 piece
Helmet Round Sphere with Small HoleOpal Trans-ClearPart 51283Element 6316974×1
Orange
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Yellowish Green
1 piece
Animal, Fish [Hollow Stud Mouth]Yellowish GreenPart 64648Element 6291414×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 71755-1[No Color/Any Color]Part 78481Element 6344780×1
Minifigures
7 figures
Maaray GuardMinifigure, checked as a whole figure×2
Nya - NRGMinifigure, checked as a whole figure×1
Prince KalmaarMinifigure, checked as a whole figure×1
Prince BenthomaarMinifigure, checked as a whole figure×1
Kai - Scuba (Seabound)Minifigure, checked as a whole figure×1
Glutinous - 72869 LegsMinifigure, 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.