ABOUT THE BOOK:
In a world where we have been genetically engineered so that we can photosynthesise sunlight with our hair, hunger is a thing of the past, food an indulgence.
The poor grow their hair, the rich affect baldness and flaunt their wealth by still eating. But other hungers remain . . .
The young daughter of an affluent New York family is kidnapped. The ransom demands are refused.
Years later a young women arrives at the family home claiming to be their long lost daughter.
She has changed so much, she has lived on light, can anyone be sure that she has really come home?
:: If you want to have a little taster of the book, you can download an extract here for free.
For information on how to download Acrobat Reader for PDF files visit the BBC Webwise site.
ABOUT THE AUTHOR:
Adam Roberts was born in London. He attended the University of Aberdeen, where he graduated with a degree in English and Classics.
He currently teaches English Literature and Creative Writing at Royal Holloway, University of London.
By Light Alone is his twelfth work of science fiction for adults
HOW TO GET INVOLVED:
Adam will be on Drivetime from 1800 on Monday 19 September to talk to Simon about his book.
If you're reading By Light Alone along with the Book Club you can chat to other readers on this page during Adam's interview.
Adam will be answering questions LIVE on this page straight after the interview.