The Sleeper's Call
This will be an attempted recreation of the setting from the famous CRPG “Gothic”.
The first part of this Campaign will play out as a prequel to the story, setting the events into motion that will lead to the creation of the barrier.
The second part will play during the sphere presence, eventually leading to a solution.
The third part will probably not come to fruition, but it would deal with the eventual aftermath of the second part.