( Have we considered that we will have no lead on where they hide until we take a risk on one of them? )

She offers her suggestion as she takes her arms from The Darkling, not before offering a small gesture of thanks by taking one of his arms in both of her hands. As far as Gildor's spells go -- all he needs to say is that the Light has the potential to be involved to steer her away.

( Surely one endorsement from a single trial will not be enough to sway the others -- but it may indeed gain us enough leverage with one respected faction to make more educated guesses in the future. )