"There's an ancient magic tradition called Acupuncture. Started in China. Muggles actually use it, though they don't 'ave the magic to make it actually work, more like imitation for them. Either way, there are points on your body that focus your energy. They call it qi, we call it magic. I'm gonna use needles to redirect the flow of the energy, see if that virus didn't disrupt it and stop your magic that way." Renwick explained this all as he pulled out a bundle of long thin needles and changed his gloves. He ran his fingers over Anthony’s pale back, examining the skin and muscle for a moment before picking up his first needle.
“I’m not gonna lie to you, you’re gonna feel ‘em going in,” Renwick said in the most apologetic tone he could muster, “And I’ll be leaving ‘em in so you can’t move around until I’m done. They’re very thin though, so it’s only a pin prick and then you won’t feel ‘em at all. If you start feeling dizzy you need to let me know though alright? Here comes the first one.” With the warning, Renwick pierced Anthony’s skin with a fine needle and left it protruding upwards whilst he selected his next.