Hey Terry Pratchett fans! One lucky winner will be able to keep track of important dates in Discworld (and this world, too) with this 2018 calendar. Everyone who enters will be able to explore the worlds of the Sir William & Mac Life Without Slippers series with a free digital copy of their first adventure, The Terror Birds. This is a limited time offer so hit the link below. "In the beginning there was nothing, which exploded." - Terry Pratchett Enter now before it explodes again Available to our friends in the Continental U.S only. When you enter you will receive occasional offers for free books, pre-orders and unusual giveaways.