Bellatrix poked the shield wall with the tip of her wand. It would take quite a while to truly dismantle the damned thing and her polyjuice would surely be worn off by then. She glared at her so-called niece.
"You are just no fun at all, ickle Nymphadora. We shall have to continue this another time. Ta-ta!" With that, she blasted a hole through the top of the shield-bubble and Apparate away before it could self-correct.