This is high action, ideas driven noir SF of the highest order. Morgan has already established himself as an SF author of global significance. Takeshi Kovacs has come home. Home to Harlan's World. An ocean planet with only 5 percent of its landmass poking above the dangerous and unpredictable seas. Try to get above the weather in anything more sophisticated than a helicopter and the Martian orbital platforms will burn you out of the sky. And death doesn't just wait for you in the seas and the skies.

Four hundred years from now mankind is strung out across a region of interstellar space inherited from an ancient civilization discovered on Mars. The colonies are linked together by the occasional sublight colony ship voyages and hyperspatial data-casting. Human consciousness is digitally freighted between the stars and downloaded into bodies as a matter of course.

For generations the solar system--Mars, the moon, the asteroid belt--was humanity's great frontier. Until now. The alien artefact working through its program under the clouds of Venus has emerged to build a massive structure outside the orbit of Uranus: a gate that leads into a starless dark. Jim Holden and the crew of the Rocinante are part of a vast flotilla of scientific and military ships going out to examine the artefact. But behind the scenes, a complex plot is unfolding, with the destruction of Holden at its core.

For someone who didn't intend to wreck the solar system's fragile balance of power, Jim Holden did a pretty good job of it.While Earth and Mars have stopped shooting each other, the core alliance is shattered. The outer planets and the Belt are uncertain in their new - possibly temporary - autonomy. Then, on one of Jupiter's moons, a single super-soldier attacks, slaughtering soldiers of Earth and Mars indiscriminately and reigniting the war.

Humanity has colonized the planets - interstellar travel is still beyond our reach, but the solar system has become a dense network of colonies. But there are tensions - the mineral-rich outer planets resent their dependence on Earth and Mars and the political and military clout they wield over the Belt and beyond. Now, when Captain Jim Holden's ice miner stumbles across a derelict, abandoned ship, he uncovers a secret that threatens to throw the entire system into war.