[Brightness? It's a term of address she isn't expecting, but she doesn't correct him.]

There are so few of us, but that makes it all the more important to retrieve our lost bluesworn.

We will need the cooperation of the red flight, at the very least. They are likely spearheading the operation. I suggest you go to Sin'thalas and meet with them there. Diplomacy is their strong suit; with luck, you may only have to provide a token distraction... but it is impossible to guarantee anything at this point.