Somewhat belatedly Rayy held up her badge - so sue her for forgetting that there were some people to whom she wasn't known in the castle - and indicated her robes. "Do you honestly think I'd wear this if I didn't get paid?" But she was also forced to give the lad his due as well. Clearly some kids had been paying attention to the 'don't trust a stranger' message. "But good for you questioning me...you've gone slightly upwards in my estimation. Always be careful who you trust but in this case it's fine. Auror Borage-Brown at your service."
The grounds? Dismay tugged at her mind and forced the resumption of glaring. She went out of her way to inform the professors of trouble and this was their solution? "The grounds?" she asked as she started moving them away from their current location. Didn't they realise that with anti-apparition charms over the school none of the death eaters would be able to flee by that method and that they'd be storming out of the castle into the grounds? She swore colourfully, using her husband's choicest phrases before remembering that parents didn't usually like adults to cuss around their offspring.
"Right," she sighed, "Greenhouses it is then." Because that was the only logical place outside to take them - the Quidditch pitch was way too open, the sheds for magical creatures too distant and meeting on the lawn was out of the question. "Gawkrodger's choice I presume? Keep that wand up...never know when we'll need it"
And that reminded her of something else she really ought to cast and raising her wand again, she fixed that little piece of forgetfulness right up.
Muffiato Charm @ the group as a whole
People who are in earshot of any conversation will have unidentifiable buzzing in their ears.