[dremora]

I'd say thats a fairly realistic outcome. Sirien runs the same risks as an assassin, so they got what they deserved. Undead spawn from NPCs killed by NPCs once usually nd then no more as Ive found while Sirien's killing people, though repeatedly if Sirien keeps striking the blows. Sometimes however an NPC wll die and not spawn anything at all if it was another NPC who killed them- all undead spawning however have been hostile for me.