[quote=@The Harbinger of Ferocity]
-is there a lantern anywhere near the back of the slave tent? Something that could be knocked over from afar, in an "accident", whilst say from somewhere hidden? Or perhaps picked up and thrown from a distance?

I am reasoning that will certainly cause a disturbance and if an alarm is raised, I imagine the focus will be on that side of the camp, putting out the fires, and accounting for prisoners. By the time all of that is settled, we should be long gone into the wilderness in the dead of night.
[/quote]

There are torches all around the camp, given they are their main source of illumination. The occasional lantern can be seen in the more "prestigious" parts of it, but a torch might serve this purpose better in any case.