Elena Irinova was a scientist and 'would be' cosmonaut with the Soviet space programme. Since the fall of Communism in the U.S.S.R. she is reduced to cleaning office floors and dreaming of building a new life in Canada. Ilya Muromyets is a drug addict who wishes only for death. Unfortunately for him he is immortal, one of the Russian 'Heroes' of folk tales, and he cannot die except at the hands of another immortal but he's the only one of his kind left.
Elena finds a strange object, a small ball that seems to absorb light, the scientist in her wonders what its purpose is. Ilya is approached by the representative of a mysterious organisation and is asked to find this artefact. Eventually Elena and Ilya come together and learn just what this object and its purpose are.
Nine Layers of Sky is one of those rare books in the sci-fi genre in that it is actually 'different'. Liz Williams has proven, with this latest novel, that she is not a 'one trick pony' and can write an original story that is fast paced and absorbing. Her style can be a little dark and oppressive at times but that suits her stories and in no way detracts from them. It's not a style that will please everyone but for anyone looking for something different, they would go a long way to find better than this.