This was it then. Verity swallowed and nodded. "Yeah, s'fine."
She crouched beside him, and laid the model down on the trunk between them. She'd studied the theory on this. She'd practiced. It was all about focus, and she was determined. Running her wand along the model, she then held it near Nicky's ribcage and murmured "Abduco."
She focused hard on the virus, running it slowly along Nicky's ribs, along his back, up by his head, down to his legs, out to his arms. She climbed around him, sometimes standing, sometimes kneeling at his feet. If anything, the pull seemed strongest in his torso, so she returned there, running the wand near his belly and up to his chest.
Eventually she stopped and rested. The prolonged magic had been a drain, and this was only the first charm. "So far," she told Nicky, "It seems to be high in your abdomen, maybe low in your chest. I'll keep looking."