After the incident in the inventing room the tour has to continue, the next room is the marshmallow room, here are made the most biggest marshmallows in the world.
The marshmallows are made with a kind of dust, this dust its so tasty but in dangerrous to be consumed.
Katie is a spoiled fox and she want everything, she take a little bit of the sugar dust and lick.
The the problem with this dust is if you lick a little bit you are gonna turn into a big marshmallow.
Katie stars turnig into a marshmallow and she was confused and angry, she dont want to end like Alice big and blue, well in this situation big and white.

This is the karma for making fun of Alice.