"And you yell at your Father and I.." Lily's voice was heard before she actually appeared before her son and what she assumed was his girlfriend. She'd arrived at Hogsmeade with the other Aurors, and when someone had mentioned seeing her son she had panicked and went searching him out. Of course, doing it under an invisibility spell had been helpful. Otherwise she was sure this situation would've never happened.
"Are you two alright?" she asked, glancing back at the Dark mark that was slowly fading from the sky.