Cruse of the crimson throne Skarwall

My group will be starting the next chapter of crimson throne this weekend and will be heading to Skarwall, as this is basically a giant dungeon crawl, do other GMs who have run this have any advice on running this chapter?

I plan on making it clear to the players before they get there to expect undead and whatnot but I was wondering if anyone has any little tricks they used that worked out well.