The Steel Tsar — Michael Moorcock

In his epic adventures in the alternative Twentieth Centuries, Chrononaut Oswald Bastable, member of the League of Temporal Adventurers, has crossed and re-crossed many different time-streams. Some of his previous experiences have been told in The Land Leviathan and The Warlord of the Air. Now, in what may be the last communication from him, he tells of a world in which the Bolshevik Revolution never happened...

The Steel Tsar finds him travelling backwards in time from a shell-shocked Singapore to a Russian Empire seething with conflict and preyed on by motley bands of rogues and adventurers. Here he meets up with fellow-time-traveller Miss Una Persson, and together they change the course of a history whose legendary deeds exceed the bounds of everyday imagination and glitter in the exuberant land of the eternal present.