....Noted, but that's not actually why I'm asking. We'll come to the last part later, there's a story there.

[He sighs, then gestures to the pile of his father's work spread out on the table.]

Four hundred years of hindsight makes seeing errors much easier. And I believe that there may well be a way to make a version of that stone that can remove diseased blood from the system, purify it of the toxins that are linked to turning, and have that same blood return to the system. It'd be a hybrid of magical theory - the concept of intent - and actual medical science through the concept of transfusion.

[He shakes his head tiredly.]

Not what I ought to be focusing on, but the thought has not left me be.