The use of a modified Bubble-Head charm, robbed Hermione of the opportunity to hear the rest of her captor’s instructions. Her keen mind was quick to recognise the terrible implication of this new spell, not only was her hearing impeded like she was in a soundproof bubble. Her sight was reduced to the ghosts of blurry shadow half-seen through the foggy sphere imprisoning her head, her own personal unwanted imperturbed helmet. She wondered if the supply of fresh oxygen was limited like the regular Bubble-Head charm. New magic, dark magic in such casual use, heightened her doomed feeling. She was now immobile, semi-blind, deaf and completely at the mercy of her captors.