Relaxing, Hermione managed a small smile as she tells her, "It's all right. I just wouldn't have wanted you getting hurt. Enough people here seem wary of what magic can do, after all, so I didn't need to have all this go horribly awry and set people talking."

Nodding, she placed a hand just over the flame, explaining, "It still gives off its own heat, so it's very useful when you're out camping." She'd learned that from experience. Lots and lots of experience.