Twilight could hear her friends frantically shouting her name, and could feel the thud of magical impacts hitting the tatzlwurm's scaly hide. Logically she knew it should head back underground to safety, but as that hadn't happened she suspected that it wouldn't until it could close its mouth, which her shield was preventing it from doing. It wouldn't take long until it could though, as its mass of razor sharp teeth were already splintering her shield. She couldn't go back, and couldn't stay where she was. She could teleport out, but that could mean the wurm going back after Moondancer, so that left her with one option.