Watson glances over, pride in his student passing over his face, and then turns his attention back to Max. "A not inconsiderable amount, and you're quite right about the risk of shock. Let's get a blanket on him."

He puts his hand to Max's shoulder, gently, testing the temperature of his skin, the clamminess. "It would be best if you lie down, Max. Make yourself as comfortable as you can. If your pain is severe I can give you something stronger, given the circumstances. If there's enough skin to stitch together I can perhaps minimise the scarring for you, help it to heal."

And, well, something stronger will probably be necessary for that.