The left arm of the dummy had stopped moving as soon as she had cast the spell. It was a success! But she had three more limbs to pin to the dummy, so it was time to get started with those limbs.

She looked at the dummy again, circled her shoulders and rolled her neck. Just reset before you go again, she thought. Taking aim at the right leg this time, which would surely stuff up the balance of anyone, though perhaps not a dummy. "Manus invisibilis," she said, twisting her wand to the right and thrusting it forward. Some of the leg found itself bound to the dummy, but the bottom bit was still flapping about. Silly stubborn foot. "Manus invisibilis," she said again, looking at and picturing the foot, twisting her wand to the right and thrusting it forward. The foot stopped moving as it found itself finally bound to the dummy.