What do you mean 'I shouldn't be here?' Neither should you! In fact, probably no one should be out here. But here we are, so let's be awesome.

[ Clara knows that he's been spooked by their incident with the dead, when she was force-fed the black mold and things were dicey. He's always over-protective when something happens to her, so she flashes him a smile of reassuring confidence. ]

I could go back for balloons, what color?

[ Just a joke, but she does have the rose petals with her, she always does after the Doctor made sure she could carry at least two safely. That's exactly how many she has. ]

Or, we could just make ourselves invisible, go investigate, and then come back here to come up with a plan.