Secret Boxes

1 part comes in a colour no other set has for that mould

• Technic Connector 2 x 2 with 1 x 1 Cut-Out with Axle HolesWhite

2 parts appear in only a few other sets

• Tile 1 x 1 with Black Cat PrintBright Pink · ×4also in 41901 Funky Animals Bracelet (all DOTS)
• Plate Special, Book 10 x 12 with Key HoleDark Turquoise · ×2also in 41811 Hogwarts Desktop Kit (all DOTS)

3 parts are otherwise only found in DOTS sets

• Tile Remover Key, Heart [DOTS]Dark Azure · ×2
• Sorting Tray, DOTS, 7 CompartmentMedium Azure
• Sorting Tray, DOTS, LidTrans-Clear

3 moulds first came out in 2021, including in this set

• Plate Special, Book 10 x 12 with Key Hole×2
• Tile Remover Key, Heart [DOTS]×2
• Technic Connector 2 x 2 with 1 x 1 Cut-Out with Axle Holes