The response is near immediate. John's head tilts and his smile fades away as his brow furrows. Anger, aggression, danger. It puts the Guide on alert. Is there another Sentinel? No. That doesn't make sense. A monster? That makes less sense. The defenses around London are very good. Even if some creatures slip in now and again, it's not exactly common, and the hospital hardly seems like the place they'd target. There's no food and better places that concentrate people. Is it something he's said, then? John pushes back.

Calm down. There's no danger. It's just me.

Actively focusing on his guiding means his hands still just a few stitches short of what's needed. "Is something wrong?" he asks. "You seem tense."