D&D 5E Campaign for Beginners - Age of Worms? Shattered Gates of Slughtergarde?

[Dax Doomslayer]

Reading the Whispering Cairn, I probably may need to get them to 2nd level for it so I think that may be a good way to go. There definitely are some tough areas in there just from the traps alone. That's an interesting idea about using The Keep Bupp. I may steal it - lol!!