I plan to incorporate the White Plume Mountain into an ongoing campaign, and there are two encounters that bother me.
One of them is the golem puzzle which I fully expect them to fail (for those not familiar: failing the puzzle will turn 5 Flesh Golems hostile), and the other one is the vampire. Am I supposed to use the MM templates for these? Because if yes, I don't see how I don't just wipe the floor with them.
For people who ran the module before, how did you handle it? Scale down these fights, or use an alternate template? Is it just fine to have unwinnable encounters, and encourage the players to run away?