Galactic Sniffers

Humans were spreading, as they once did on earth, into every niche that would sustain them. There were human colonists on the rim of the Milky Way looking longingly across the empty chasm of intergalactic space at our neighbouring galaxies, hoping a way would be found to bridge the chasm. The way to the next galaxy was through a stabilised wormhole. Yet this last piece of the technological puzzle was being sabotaged. Out there, an entity was undermining humanity's one way of reaching the ot...