"A dog whistle? Hmnn..." That might be hard to stop, if it was so mundane. Where'd that Phones kid go when you needed a sound guy? She'd have to come up with something, herself. To stop a whistle... She'd have to think on it. "Is it playing now? Ah, no. Nevermind, you've told me enough. Save your strength, and let them heal you so you can walk." She gave Prince a vaguely stern look. She'd tell him till she was blue in the face, but she had more pressing matters.
Trinity added a small array of harp strings to her bow, such that they would resonate to a loud tone on inaudible frequencies. She'd just have to notice the vibration. In the meantime, she should get in there to Karn. He looked hurt, too.
The minstrel stepped up to the wall of ice, looking up at it for a moment before looking through it and calling, "can't you do something about this wall, Sasha?" She looked back up at the icy barrier before conjuring a fire arrow into her hand and starting to chip at it, halfheartedly at first but her seriousness grew as she saw no other way in.