3. 'The Book of M' by Peng Shepherd
"Set in the near future, The Book of M tells the story of a mysterious natural disaster that causes people's shadows to disappear and, shortly thereafter, their memories.The phenomenon imbues its victims with strange magic, but at a horrible price: it robs them of a memory each time they use it. Many try to resist the power, but the temptation is too great.As the shadowless victims forget more and more of who they are, reality begins to bend to reflect their fractured recollections, plunging the world into a terrifying, ever-shifting alternate landscape."

Amazon, $11