I already know that I can't channel the mana to Ruby, and if I try to hold it in me, I will die for sure. I can only think of one other option and, without time to think twice, I immediately start channeling all the mana to Blitz and Black Razor.
I quickly realize that I'm only channeling the archmage's mana, but I can't pay attention to trying to figure out what happened to the demon's mana. I feel quite a bit of pain, but I ignore it as best I can and keep drawing mana from me as fast as I can.
Everything goes black for a second and when I open my eyes, I find myself leaning against the far wall of the cave. I can hear sounds of struggle, Ruby needs me! I stand up and discover that my left hip hurts. I look down and discover that my flesh is burned and torn and Black Razor is not there. A quick look around shows no sign of him, I guess he couldn't handle the mana and exploded.
