...speaking of which, Fall of Plaguestone has a reputation for being perhaps the worst balanced PF2 adventure difficulty-wise. I haven’t played it personally, but from what I’ve heard from those who have, you might want to consider giving the PCs an extra level (and using milestone leveling to keep them 1 level ahead) if you’re going to run the encounters as written.
I've heard that as well.
as a very quick counter to this. I ran Plaguestone for a group of 5. 16 sessions worth of play.
no TPK, no single player perma-death
and I increased the difficulty in some parts.
- I added 2 gnolls in the Hallod BBG end-fight to conclude chapter 1 (added difficulty to the encounter mistakenly)
- did not do the bear fight ('cause the whole "walk around town didn't sit well with me)
- had most orcs (I changed them to gnolls) in the upper/ground section of spites cradle fight all at once (like 4 encounter areas merged into one)
- the blood ooze and the sculptor fought together (this was a very close battle), with the Sculptor able to mini-command the ooze
it was tough, nail biting even in some parts, but with 5 players even with some "mistaken" increased lethality like I did survivable. I'm not an optimizer GM.
cheers,
J.