Okay, so, Kris and the Knight's goal with Chapter 3 was to get Undyne as a sacrifice, that's why the Knight appeared to stall for time when Tenna decided to be a good boy instead of following her plans. But what was the deal with Chapter 4? Were they trying to go after Toriel again, but Sans fucked that up? But if they Knight really wanted to take Toriel, I think she could have in Chapter 3, so... What? Did they just want to test and see if Kris and the Soul could kill a Titan? Did they want us to see the prophecy? That can't be it.