"I can take us to them, and I should be able to keep their attention off of us. It'll be easier because they haven't noticed us yet." Not perfect, because monster perception is weird and harder to interpret, but they should be much less detectable at least.
As they get closer, she lays out her game plan:
"The maybe-a-person mind in there seems pretty out of it. Hard to say if sudden noise or movement would jolt them awake, or get no response, and it's risky to test. So what I want to do is create some kind of mild, ongoing stimulus, one that shouldn't be enough to startle anyone, but distinct enough that I can use it as a distraction." She starts some music playing from a small portable speaker, esper-quiet, then reaches out to the minds over there.
[Music is the most interesting thing. Music is fascinating and if you heard any you'd be so engrossed you wouldn't even notice whatever else might be happening around you. Especially not any people. People are so completely boring and hold no information worth having.] she wills at them, then, carefully monitoring them for any changes in attention, slowly notches the sound up.