Maybe give a brief summary of the topic you're referring to? There is a set piece around level 5 I seem to recall so it may well be that one.
It involves going to a winery, having a combat with a swarm of some creatures, meeting an important villain with a long history in D&D, going to the town of Valaki (sp?), and having other scripted events happen whilst there.
Again, I haven't read the adventure so I don't know the context of the session. Just that my fiancée knew every detail about what was going on because she had played it nearly two years ago.