The Ancient Hobo Burial Ground is the spooky zone in Hobopolis. Hobos in this zone are resistant to all elemental damage.
A primary stat of 350 is suggested. If your main stat isn't high enough, you'll see the following message:
A skeleton hobo unshoulders his bindle and unwraps it to show that it contains a severed human head. You're not sure if skulking around fragrant undead vagrants at your skill level is a good idea.
(It is recommended that you have at least 350 <mainstat> to adventure here.)
Study the hobos' dance moves: Become more in-tune with dancers (must be done 3 times before you can successfully dance with the hobos, after which this adventure is replaced by the identically-named adventure below *without* the choice to study the moves.)
Dance with them: Try to sabotage the dance (kill multiple spooky hobos), but fail because you haven't finished studying their moves yet.
Note: Initially, each successive dance *by the same person* kills more spooky hobos. After about a dozen, the number starts to decrease instead of increase, finally coming back down to zero after 23 dances. Each person has a separate dance counter per instance, so if one person can no longer dance usefully, somebody else still can - provided they study the moves first.