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.
1,293 pieces in 376 part and color combinations, plus 4 minifigures.
LEGO counts 1,308 pieces. This inventory comes from a separate parts catalog and lists 1,309, including the 16 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.
Door 1 x 4 x 6 Smooth with Chamfered Handle PlinthWhite ×4Trans-Clear ×2Trans-Clear is see-through: hold the piece up to a light.
Cone 1 x 1 [Top Groove]Yellow ×1Trans-Yellow ×4Trans-Yellow is see-through: hold the piece up to a light.
Plate 1 x 2Black ×1Dark Blue ×14Black is yellower and darker than Dark Blue.
Plate 2 x 6Black ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Dark PinkPart 4032aElement 6326495×1
Trans-Purple
2 pieces
Cone 1 x 1 [Top Groove]Trans-PurplePart 59900Element 6514023 or 6337603×1
Headwear Accessory Glasses with PinTrans-PurplePart 18854Element 60969912 spares in the box×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 41684-1[No Color/Any Color]Part 77538Element 6338094×1
Minifigures
4 figures
Amelia - Dark Turquoise DressMinifigure, checked as a whole figure×1
River - Dark Bluish Grey Jacket, Black Pants, Dark Brown HairMinifigure, checked as a whole figure×1
Emma - Light Aqua DressMinifigure, checked as a whole figure×1
Stephanie - Dark Red UniformMinifigure, 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.