I was in a tomb on my shadow warrior, when I accidentally crossed into a path of light and was seen for a moment, three bandits came running after me. I quickly moved down a hallway and they ran past some sleeping draugr, which woke up and attacked the bandits.
I noticed as I pillaged every chest in the adjacent rooms that there was a trip wire with some boulders down the hall, as well as that their fight had moved into a puddle of oil. The jar holding the candle was far around the corner past them, but I do have a fire spell.
But as soon as I use it, I will be exposed.
Moving as far as I can, I wait until the bandits slay the draugr for me, and then light the oil before they move. They erupt into flames and come chasing after me, me coming out of crouch and running for the trip wire. I set it off myself, using Become Ethereal to not be hurt by the boulders. Two of them survive, but about 3 rapid swings later, they are dead.