She launched herself toward the nearest knot of black robes, shrieking like a berserker. She dodged and jumped, firing off bombardas, stupefies, even a few sectumsempras. Years ago she had worked out a way to chain a shield charm to an offensive spell so she could cast offensively while still protected defensively. As she drew closer to the group in black, about forty by her count, they began to apparate away. She would have set anti-apparition wards, had she been thinking clearly, but she had been too caught up in getting to her friends. 