It's not what you might be thinking. Or I don't know what you're thinking.
Whatever.
Experiments in magic, basically. I might have accidentally tapped into my own lifeforce in creating some marbles as- y'know- practice. I did it yesterday, and I did it again today to find out just what happened yesterday, and how I did it.
1.5 imperial gallons of tea were consumed during the writing of this post-He perks up at the chopper, and rushes outside-
What if there’s no better word than just not saying anything?-notices Caster vanishing, thinks to ask later-
W-well... basically, so I learn how I tap into it, so I don't do it again.
Know what to avoid. I only discovered I could even do this- Heart's Glass- kind of thing yesterday.
Besides, I wasn't using all of it- just a little, that I can recover from. I mean- I only used the same amount as Yesterday's and as it stands- this is about as equally bad a nosebleed as the one I had yesterday- which cleared up after a few hours.
1.5 imperial gallons of tea were consumed during the writing of this post

-he's still cleaning it up-
-slightly muttering to himself-
-it's a lot of blood-
1.5 imperial gallons of tea were consumed during the writing of this post