Mr and Mrs Kindle

My oldish Kindle and Mrs St Swithin's which she got as a Christmas present. She has the fancy new one with the backlight.
My Kndle is by a long stretch the best gadget or new piece of electonics I've bought in ages (save my camera) . Its beginning to look a bit dated and does not have fancy touch screen but does the job for me.
I've set myself a target of reading all the Ian Rankin Rebus books in order and am now on book 4. I've read the odd one in the past but its interesting reading them in sequence . However.. the book on my Kindle is Gone Girl by Gillian Flynn - a thriller which has come recommended by a friend and was top of the New York Times best sellers chart.