Urrrrrgh. I had bizarro dreams last night, involved some sort of alternate universe next to ours, and me somehow slipping through. They had a bunch of ***hole aliens who hated the sight of humans (literally—they found humans as disgusting as… well, I could get graphic, but imagine what you dislike on basis of sight and go with it), and disintegrated them with purple-pink beams shot from their ships. All that technology, yet they were thwarted by shadows. People had learned that in order to escape extermination they had to duck to the nearest deep shadow and stay there, and they’d be ignored, although you had to keep in mind that the disintegration beam was pretty wide (and took couple of moments before the full blast came in), so you could still get hurt by catching the edge of it.
There was some kind of underground resistance, except it was pretty corrupt. Somehow they had managed to liberate some hand-held weapons (which looked like tablet computers), that projected the same disintegration beam stuff. Suddenly, a ship flew overhead and somehow spotted us, despite us being under the canopy. I saw the disintegration cannons warming up, and grabbed one of the weapons and pointed its beam to the ship as it fired. The beams reacted in an unusual way, and the ship went down and kablooeyd. Everyone was “WTF was that? We have been trying to fire the beams at the ships but it doesn’t affect them at all!” and I explained the beam-vs-beam thing. They had apparently gotten quite a load of those handheld things, but since they never saw the alien troops and they had no effect on ships, they considered them mostly useless.
Near the end the resistance and remnants of humans sent the aliens packing, and we had to close the rift they had used to travel between the worlds. Sadly, that also meant that I was going to be stuck in this place, as it was the same rift that had opened to my world. Only something like 200,000 humans remained alive on this planet, scattered all over the place.