"A few feet only." She lets the aura expand until the entire room is brightly illuminated. It blinks out after a moment.

"The flash may attract others on ground-level, though. You should be careful of a swarm if we proceed as such." The edge of her mouth quirks slightly. She didn't mean to insinuate that he was more deeply mortal than she, that he was corporeal, but that's likely how it sounded. She leaves that one alone.