We started The Edge of Night adventure last session. I personally think this adventure is the most vague and roughly worked that FFG have produced so far, and needs an unbelievable amount of effort to bring it up to scratch. But that aside, here are some ideas I've had for extending it and making the pre-masquerade ball section workable. You may recognise bits stolen from these forums, and the old adventure The Thousand Thrones!
If anyone else has any ideas to add to this I'd really appreciate you jotting them down here, as we play again tonight and I need all the help I can get!
Firstly, our last adventure was Horror at Hugeldal. I have made 'F' (ie Dr Festus) the main nemesis of this part of the campaign, and the Green Pox unleashed on Hugeldal was the 'staging ground' for his wider plot to poison all the nobles at the Ball. Therefore the PCs will be tracking down and fighting Nurgle cultists in Ubersreik rather than skaven.
I'm going to try to keep Dr Festus out of reach for a while - perhaps extend his machinations into The Witch's Song at least - so the main protagonist of The Edge of Night will be another of his lieutenants (possibly Gul Proll, whom I didn't use in Hugeldal).
As for meeting the three noble families, these all needed encounters. The PCs already knew Aschaffenberg as he has been a kind of patron up until now, though he has now distanced himself from them as he tries to built his reputation of respectability. One of the PCs, a dwarf, met Von Saponatheim's man Pietr Koch in the Axe and Hammer pub, and Koch invited him on a job. This turned out to be Von Saponatheim himself going for a night on the town, though he is playing the part of a stupid noble (unfortunately, due to strange PC movements, I missed the whole bit where they meet him outside Ubersreik so had to bring him in later). He paid the PCs an outrageous 1 gold upfront (and the promise of another afterwards) to accompany him to The Docker's Arms, where there is are pit fights in the basement. Here one of the PCs is about to go up against Agnes Schild (Von Holzenauer's bodyguard), with instructions to 'put her out of the picture'.
This will end in a bar room brawl, with the PCs having to choose between protecting von Saponatheim, or going with Schild, who offers them better employment with her patron von Holzenauer when she sees what good fighters they are.
If they go with von Saponatheim, he will cast off his 'dumb noble' act when he sees they can be trusted and give them real payment (the gold piece was counterfeit) to find the Temple of Ranald for him (have to work out this thread but it will likely involve meeting some lowlifes, gambling etc).
If they go with Schild, they will get an invitation to go hunting with von Holzenauer the next day, during which he will ask them to do a favour for him and track down a watchman who has gone missing in the sewers (he found out about this through his military contacts and wants to impress the local watch with his efficiency).
In the sewers, the PCs will find the corpse of a Nurgle cultist, and a Beast of Nurgle protecting the now-abandoned old lair of the Nurgle cult, and the (now mad) watchmen locked up and forgotten, clutching a piece of paper with some clue about the cult I haven't thought about yet.
My other main encounter at this time will be in the marketstrasse, with the witch hunter Krieger (from The Witch's Song) and his flagellants making trouble, when some nurglings crawl out of a sewer grate and there's a mass panic. Good way of introducing Krieger as I want him to be a recurring character too.
Ideas VERY welcome!