I've always been a secret locked-room fanatic. I read my first one when I was about ten or 11, Agatha Christie's 'Murder on the Orient Express,' with David Niven and Peter Ustinov on the cover.

Our daughter's name Arwynn comes from Arwen in 'Lord of the Rings' because my wife and I met for the first time in the Eagle and Child pub in Oxford where J. R. R. Tolkien and C. S. Lewis used to go to read out their stories to one another.

I had a few stories and longer pieces published, but my first proper novel came in 2003, called 'Dead I Well May Be.'

'The Man in the High Castle' was not the first alternative history novel, nor even the first Nazis-win-the-war novel, but it is still probably the most influential book in the genre.

I met my wife in Oxford, fell in love with her, and followed her to New York. I was an illegal there for the first few years, until we got married, so I ended up doing lots of interesting jobs, some for a few days, some for a few months.

If you haven't read 'In The Morning I'll Be Gone', I reckon it's a pretty good place to start if you're new to me and my books.