Tanner Mirabel was a security specialist who never made a mistake ... until the day a woman in his care was blown away during an attack by a vengeful young postmortal name Argent Reivich.

Tanner's pursuit of Reivich takes away from his homeworld, across light-years of space, to the Epsilon Eridani system. There he descends into Chasm City, the domed human settlement on the otherwise inhospitable planet Yellowstone. But Chasm City isn't what it used to be; the one-time Utopia has become a dark, Gothic nightmare, victum of a nanotechnological virus which has corrupted the city's inhabitants as thoroughly as it has the buildings. Now the city is a place of steam-driven machines, shadowy factions and deadly new games.

And before the chase is done, Tanner will have to confront disturbing truths, not only about his own past, but about Chasm City itself; truths which reach back centuries, towards deep space and an atrocity history barely remembers.

Come to Chasm City, and embark on a mind-bending ride through Alastair Reynolds' wild universe...