The invitation had been sent to the Capitol escorts with the intention of them passing it on to the correct people in their groups of tributes. It was clearly intended for people who'd had their powers taken by the Capitol with no way of using them, though a few got given to those that shouldn't have received them.
 

 

The meeting place was tastefully but sparingly decorated with lots of comfortable chairs for sitting and tucked away corners that would be perfect to discuss matters privately if an individual was shy about their particular power. Every care had been taken to ensure that the tributes would feel at home in the small cosy meeting hall and Glinda would take every care to ensure that she spoke to each and every tribute to welcome them and learn their name. She had been slacking in her self appointed duty of caring for those who needed it most and there were some here that definitely required her attentions.

After everybody had been sufficiently welcomed in and it seemed no more tributes, mentors or escorts were to arise the witch took to the pupil. "My fellow tributes. I can only thank you all for attending as gracefully as I might wish to though it pales in comparison to the gratications I feel toward you all." She pressed a hand to her heart. "I have brought you here as I know I am not the only person within these walls that has had her powers taken from her for her own protection and that of our gracious hosts; the Nation of Panem and President Snow. I am sure each and every one of us understands deep in our hearts the depth of feeling that the nation holds for us as it's tributes. And it's sincere wish to keep us safe when not competing in the arena." A subtle warning to the more foolhardy in the audience.

"But, for once I wish for us to have a unique opportunity that we have brought about ourselves. There is many a person in this room whom you have doubtlessly never spoken with before." She spread her arms. "Let us speak and know each other better. For we should be there to support our fellow tributes who have lost what so many believe to be an essential part of ourselves in the Capitol's rightful strivances to protect both us and it's citizens. I suggest that perhaps we might learn that we are in fact more than what we have had taken. But most of all, I wish that you all might find close friends and good fortune here."

And with that charged little speech she gestured to little crowd of avoxes who began circling with food and drink and all were encouraged to socialise among themselves whilst polite music played in the background.