It has eaten five hundred worlds. Earth will be the five hundred and thirteenth — unless Dr. Mara Voss can teach it to listen.
When astronomer Yuki Tanaka spots an anomaly moving through the asteroid belt, she expects a glitch. What she finds instead is something forty-four thousand kilometres across, four billion years old, and heading directly for Earth — and it's alive.
With fourteen months until impact and every nuclear weapon on the planet amounting to little more than a sneeze against something the mass of a dwarf planet, humanity's last hope falls to Mara Voss: a grieving xenolinguist whose life's work — building mathematical frameworks for conversations with alien minds — everyone assumed would never matter.
Now it's the only thing that does.
Combining the propulsive dread of The Martian with the philosophical depth of Contact, The Macrovore Accord is a story about grief, courage, and the radical act of choosing communication over destruction. Because the most dangerous assumption humanity has ever made isn't that we're alone in the universe — it's that anything different from us couldn't possibly be worth talking to.
Some negotiations change the world. This one saves it.