Michael Moorcock 
Alien Heat 

The universe is dying; at the End of Time the last remnants of Humanity live amoral lives of decadence, constantly seeking new diversions and sensations. So when Mrs Amelia Underwood is mysteriously transported to the End of Time Jharek Carnelian decides to fall in love with her, but when Amelia returns to her own period of history, Jherek follows her and finds himself plunged into the strange world of Victorian London.