What is the kaleidoscacpe chapter 4

So I was on my way down stairs until Millie saw some files each file had plans for something she asked me about the files I told her it was it's a secret and it was something I was working on of course she didn't fully believe me but then I decided that we should go and play some games like we normally do Millie was still fought I was suspect but we continued on anyway so all we did was we played some games yeah.