Michael Moorcock 
City in the Autumn Stars 

The City In The Autumn Stars: Being A Continuation Of The Story Of The Von Bek Family And Its Association With Lucifer, Prince Of Darkness, And The Cure For The World’s Pain.Disillusioned by the excesses of the French Revolution, Manfred von Bek flees to the city of Mirenburg, where a Scottish balloonist, an elusive duchess, and a fallen angel become his companions on a journey to the mystical Mittelmarch — the land between lands- in search of the Holy Grail.