In this NEFX shell based on Pathways Into Darkness, you've probed too deeply into matters unknown and found yourself in the forbidden zone, at the mercy of a once-dormant deity ordering your retrieval of diamonds to escape.
I added a separate Pathsifter map called "The Abrasion at the Horizon Boundary". You can get this map and others along with the scenario folder itself at the provided link.
An incomplete scenario that was the prequel to Marathon: Dave (mainly known as Dave demo).
Please read the text document that comes with.
1.0 - First time being released to the public besides the other versions for TBCROnline.
This requires the shapes and sounds from MPiD beta. I put them in the download so you'll already have them on hand if you didn't already have them.