Our group was Alrek, Neerix Valashar, Madeline LaRue, Fearille, Giuseppe, and Rook. Plus myself.
When we took this quest, we were doing fine until undead pigs came at us, and the AoE damage they did was fairly impressive. About 104 fire dmg.
Naturally, this caused about four of our members to wipe out in less than one round as four of them went off at the same time.
Might wish to scale back the pigs to appear less often!
Apparently BoM did not realize how the scripts worked.
This is not a bug.