medical.
It's difficult to explain. And I've never had to explain it before.
The Charter was created in the Beginning. There was magic everywhere, Free Magic, but the Bright Shiners bound it, with their blood and in some cases their lives, into the Charter. It's... a river, that runs through everything. Earth, stone, wind, water. There's some Free Magic left, in Death, and in chaos.
That's how it is in the Old Kingdom. Things are different in other lands and worlds. The Charter is very faint here, and Death is difficult and tricky. In Ancelstierre, you can't feel the Charter either, unless you're close to the Wall, closer to the Old Kingdom. Or unless there's a strong wind blowing from that direction, or a storm, as there was when I was there. I wanted to figure out which direction the wind might be blowing it in from, but the storm was too strong.