Cat Birthday Party and Tree House (LEGO 42666)

About this set

This is LEGO Friends 42666, a 321-piece scene set rated 2/5 for difficulty. The box is branded LEGO Friends, and the theme is a treehouse party. The palette leans on pink, green, blue, yellow, and brown: brown for the treehouse frame, green for the foliage, and pink, blue, and yellow showing up around the lantern decorations and the party cake. The build is straightforward, but I would start with the treehouse body and attach the raising basket afterward, since the basket is the one moving structure here and the cord and rail alignment is easier to get right before the roof goes on. Save the lantern decorations and cake for the end so you are not knocking them off mid-build. Place the minifigures and pet cat before closing the roof, because reaching inside afterward is awkward. At 321 pieces the pace stays relaxed, and the 2/5 rating means little rework. It suits Friends collectors who want a pet cat and a party scene, and works as a first scene set for newer builders.