Chapter 1. Return
The object, cataloged by NASA as 4I/Rubin, was first spotted beyond the orbit of Jupiter. It was of no particular interest—just another chunk of water ice and frozen gases, millions of which roam space. Its trajectory, however, was unusual, indicating an interstellar origin. Astronomers dubbed it "Wanderer."
Wanderer passed the asteroid belt without hitting anything. It swept past Mars without even noticing it. Its path lay toward the Sun. Calculations showed that it would perform a risky gravitational pull around the star and be flung back into the abyss, toward new, unknown worlds.
And so, having reached perihelion, when the Sun's hot corona should have vaporized its icy shell, Wanderer accomplished the impossible.
It didn't evaporate.
Instead, its dark, porous core, not composed of ice at all, absorbed the monstrous energy of the flare. Superconducting circuits, dormant for millennia, awakened. The icy mantle, serving as both shield and camouflage, was cast off, vaporized into a blinding coma that for several hours eclipsed Venus in the Earth's sky. And when the plasma dissipated, ground-based telescopes detected not a cometary nucleus, but a perfectly smooth, elongated object, resembling a black spindle or a spearhead. It was darker than the night sky and absorbed up to 99.9% of the light that fell upon it.
The Wanderer changed course. Now it was hurtling purposefully toward the third planet from the Sun. This was not a dying visitor from the depths of space. It was a ship.
And it was returning home.