Beyond the portal in the introduction...
designer's blog comment:
My player went through the Brain lasher powered portal in Mine of the Brain Lashers. I had to make somethng beyond the portal in one day. This is what I did.
The adventure is compatible with Mutant Future, Gamma World and other similar science fantasy post-apocalyptic games. With minor tweaks you can naturally run it with any system or setting.
Ware Of The Brain Lashers could be entered through the portal in Mine Of The Brain Lashers (scenario in Mutant Future rulebook) or any other suitable Brain Lashers’ portal in your campaign world.