By vibe it aims between Linda Nagata's procedural hardness and Gareth L. Powell's crew-centered warmth, with a dash of archival mystery. If you enjoy engineering problems and code puzzles more than layered character arcs, you may find enough to chew on, but I came away admiring the scaffolding more than the story.
When the solar system's century-old relay beacons—called Dawn Nodes—flicker back to life, systems engineer Mara Istrate is pulled from the quiet mines of Pallas to the Helios Gate above Mercury. The nodes broadcast a latticework of coordinates pointing toward the Kohoutek Arc, a cometary halo no one has charted, and a warning encoded in archaic Sagan-number primes. With the corporate Vitrus Council mobilizing gunships and the Freeyard Union dispatching the corvette Oriole, Mara and her crew chase the signal with a contraband muon-core and a jittery AI named Trillium.
Inside the Arc, they discover abandoned habitats stitched around ice spires, each sealed by a biotech lock that recognizes the dead. As sabotage follows them from the Seiche Basin to Ceratine Station, Mara must decode the nodes with Dr. Nkiru Ezenwa, an archaeolinguist who claims the pattern was taught to her by a vanished colony on Ganymede. The final node demands a choice: seed a newborn sun with human memory to save a dying Earth, or sever the lattice and let the unknown builders finish what they began.