Okay, yeah, Prussia was rambling nonsense now. A section of land is a liver? What nonsense is that?

It is complete nonsense, that's what it is.

"Well, you don't want to fight me, and I don't really want to leave you here to try to pick fights with other people. What if I just throw you in the river and we call it even?"

It was something he could actually do and it wouldn't reveal the full extent of his powers. England already knew about his wind powers anyway so it wasn't some huge secret.