That would be our Sunday night PF campaign that wrapped up back in Nov.
I ran Reign of Winter from Jan.8th '17 - Nov.11th of '18.
All 6 books, lvs.1-17, many modifications/twists/turns/etc based upon the characters & RP. Nearly two years of great stuff. To date it's the only PF AP that we've ever actually finished.
We almost wrapped it up on the 4th, but it was getting late & everyone had Monday morning to look forward to.... So rather than start THE final fight & then have to pause it, we chose to call it for the night & finish the campaign the next week. Everyone expected this to be a fairly lengthy encounter. And I was well prepared.
So the next week comes & one of the players decides to open with essentially a hail mary, hard casting a Trap The Soul on the villain as they entered the room (provided they survived the entry - they knew the villain was well prepped & had the initiative on them).
ALOT of damage/effects were suffered upon entry, but the party did survive.... The spell was cast, bypassing SR.
All I have to do is roll a 2+ to save. And I have a re-roll.
So of course I roll a 1.
And then a second 1 for the re-roll!
Everyone sat there in silence for a moment. Nearly two years of play had pretty much just ended in snake-eyes.
Of course the rest of the fight, even though a mop-up action at this point, was still a really tough battle. The Witch Queens minions weren't about to just concede....
But really the campaign ended with that botched save.