Hello everyone,
I'm currently running a campaign in which the group accidentally released an ancient Sith spirit from a crypt. This spirit was being contained by technology built by the Infinite Empire thousands of years prior.
The idea behind this campaign is that the spirit can only be contained again once the party travels to-and-fro across galaxy while reseting specific "locks"; also left behind by the Infinite Empire. Think of the Arc in Halo which controls the Halo Array, only inverse.
Anyways, one of my favorite things when planning a story is making it believable and have it fit in with existing lore (as much as possible, anyways) and I wanted to know if anyone knew of a few systems and/or planets which could house these "locks". I'm looking for planets which have had known sith-activity and/or history with the Infinite Empire, or that are just creepy in general. The group released the spirit on Belsavis (which fit the "prison" location of the sith spirit). Korriban is a obvious choice, and I already have plans for that to be the last location they need to travel to in order to reset the last lock.
Any ideas?