Good, because falling off would involve hitting stone wall, hitting a dwarf, and hitting a lit torch, before hitting the ground. The fall might not kill, but it would definitely break bones otherwise.

Rachette splashes into the water. It's shallow, enough that she feels her concerns over a water source are very justified. It's a desert; there are a lot of people here. They'll need an easier way of filling their sacks of water. The torch doesn't go far, though she's pretty sure she can see a glint of some shiny stone. But there's another light source from...somewhere down the way. Where that draft is coming from.

"If there's really an opening somewhere down here," she calls to the elf over her shoulder, "it would be better to reinforce it or close it off. Might get darkspawn wandering in. Or a sneak attack from Venatori in the night." Totally not a shudder or anything. That's just a trick of light.