I used to record our campaigns in story all the time. The dramatic elements and scene setting, shared with the group, helped keep the story line, I don't know, colorful. I think it inspired the other people at the table to keep "It makes good story" in mind as they played.Thanks for the report. Good story, and I liked the behind-the-scenes commentary.
It actually already ended.They're 18th level 3.5 PCs.
If they dont have clones, contingent [plane shift to ally, who has scroll of raise dead] spells crafted on them, plus true ressurection and wish to fall back on, it's their own fault!
On a practical level, have Ignus simply take them prisoner. He likely wants to interrogate them to confirm his rival sent them, and may very well need them alive as proof of his betrayal of the pact they had.
Then stage a rescue from the other (split up) PCs.