Hehe, so my speculation turned out true, we are bringing out another side of order through this, and now it turned crazy.
When you think about it, this chapter suddenly lost the humoristic approach at the end and it all got serious enough for me.
For the next chapters, I bet we will learn a lot more of the background about the ghost and the experiments she endured. Maybe we will also learn the stuff about that flashback of Lenalee trying to escape :]