The Chronos Horizon

Forty-two light-years from a dying Earth, the deep-space survey vessel Vanguard IX enters orbit around Kepler-442c—only to discover a twelve-kilometer ring of black neutronium buried beneath the planet's southern glacier. When theoretical physicist Dr. Kaelen Thorne decodes a distress signal broadcasting from the alien structure, he uncovers an impossible paradox: the beacon is human, manufactured at the Lunar shipyards two hundred and fourteen years in the future. Pulled down through the atmosphere by a violent temporal shear wave, the crew crashes beside the rusted, two-century-old wreckage of their own ship. Caught between a covert government saboteur and a four-million-year-old planetary time machine, Kaelen and his crew must break a lethal causal loop before an antimatter detonation erases the future of two worlds.