I don't know how you would reverse it. The array needs to be drawn in your blood.

[Enough of it to bleed out, it was a really gruesome desperate last stand thing to do.]

I don't know who the original creator was. It's very old, I only found records of it's use a few times in the past several hundred years. All I did was learn about it from those who had died, and old texts I put together. A lot of the sources did not even know the original ritual, or at least not all of it.

I'm rather proud I priced it together so well.