Fiasko
Piloting a large mechanical strider, Parvis searches through a massive foam glacier known Birnam Wood for a lost comrade. He passes through a field of non-organic crystalline structures that resemble the remains of once living creatures.
"This truth, gradually penetrating the observer, was more unsettling than the impression that he was witness to a cosmic mimicry of death, or that these were in fact the mortal remains of unknown beings that lay beneath the stormy horizon. So one had to turn upside down one's natural way of thinking, which was capable of going only in one direction: these shapes were similar to bones, ribs, skulls, and fangs not because they had once served life—they never had—but only because the skeletons of terrestrial vertebrates, and their fur, and the chitinous armor of the insects, and the shells of the mollusks all possessed the same architectonics, the same symmetry and grace, since Nature could produce this just as well where neither life nor life's purposefulness had ever existed, or ever would." .
Part II: Arrival at Quinta
Hundreds of years later, humans have embarked on a mission to explore a planetary system where an abundance of radio waves has been detected. They make use of "siderial engineering" and gravistics to warp a black hole into a toroid for safe passage over 300 light years. Traveling at relativistic speeds, the crew will age only days while 300 years passes for the distant planet, known as Quinta. When they arrive, they try in vain to make sense of their observations about the alien solar system.
The crew's first encounter with the alien technology is a gigantic cybernetic moth-like machine, tumbling towards the edge of the solar system. When brought on the ship for dissection, the artifact shows catalytic corrosion from artificial microparasites programmed for selective aggression.
The solar system, later referred to as the "war sphere" is subjected to intense analysis by DEUX, the ship's AI, and the scientific teams. Uncertainty reigns and frustrations mount as the observations elute logical explanation.
Part IV: Vision
After months of frustrating silence, the Quintians finally send a message to the Hermes, allowing for an unmanned reconnaissance ship to land in a designated spaceport. The lander returns with a strange series vision transmitted by the alien world.
"Out of a heavy green mist emerged a vast surface, seen from a great height. It gleamed dully, like frozen mercury. Incredibly slender needles stood upon it at regular intervals,like pieces on a chessboard: stalagmites immaculately white, sharply pointed, and growing." Imagined with "concealment" in mind.
Part V: Descent
After a series of cataclysmic exchanges, the Quinta agrees to allow a single human to land on the planet and receive a "greeting."