Eon

As global nuclear tensions escalate to a perilous peak in the 21st century, a monumental and mysterious asteroid, dubbed 'Thistledown,' suddenly appears in Earth's orbit. Scientists from rival nations are compelled to unite, driven by the urgency of an impending apocalypse, to investigate this anomaly. What they discover inside defies all understanding: a colossal, hollowed-out structure spanning hundreds of kilometers, housing an ancient, abandoned city and technological wonders far beyond human comprehension. This isn't just an asteroid; it's a starship, a generations-long habitat, and a gateway to infinite possibilities. As humanity races against its own self-destruction, the secrets of Thistledown begin to unravel, revealing its origins from a future Earth and its profound connection to an artificial, trans-dimensional tunnel known as 'The Way.' The revelations inside Thistledown threaten to shatter contemporary understanding of time, space, and humanity's ultimate destiny, forcing characters to confront the implications of parallel universes and the cyclical nature of existence.