Ginny started a little at the voice, reaching for her wand automatically, and then grimacing. "Oi, Brocklehurst. I might have hexed off your eyebrows," she said, a bit of accusation in her tone, even though she knew it wasn't fair. Ginny had been the one not paying enough attention to anything but what was going on in her own head to notice Mandy lying about.
But still. She might have made a noise or something.
She picked up another rock, but just rolled it in her fingers a little. "Sorry," she added, a bit grudgingly. Ginny didn't have anything against Mandy in particular, except that Mandy wasn't one of the 'Claws who'd thrown in with the DA straight off, and Ginny couldn't help but resent people who didn't buy in early and throw themselves into it. She knew that was unfair - secret group and all, not everyone even really knew what they were about. But it was how she felt, nonetheless. "What are you doing out here? Bit nippy, isn't it?"