One day in the not-too-distant future, a wormhole opens up on the outskirts of the Terran solar system. For the next twenty-five years, it comes and goes at regular intervals, spilling mysterious transmissions into local space. The Terran Security Council rushes to establish a foothold on the far side of the wormhole-ostensibly to explore this new part of space, but in reality to forge a first line of defense against a possible alien invasion....
CHF 27.50
