You can now download Terry Pratchett and Stephen Baxter's The Long Earth for only 3.99$ here.
Here's the blurb:
An unmissable milestone for fans of Sir Terry Pratchett: the first SF novel in over three decades in which the visionary inventor of Discworld has created a new universe of tantalizing possibilities—a series of parallel “Earths” with doorways leading to adventure, intrigue, excitement, and an escape into the furthest reaches of the imagination. The Long Earth, written with award-winning novelist Stephen Baxter, author of Stone Spring,Ark, and Floodwill, captivate science fiction fans of all stripes, readers of Kurt Vonnegut, Douglas Adams, and Carl Hiaasen, and anyone who enjoyed the Terry Pratchett/Neil Gaiman collaborationGood Omens. The Long Earth is an adventure of the highest order—and an unforgettable read.
Aerial combat brings a thrilling new dimension to the Napoleonic Wars as valiant warriors rise to Britain’s defense by taking to the skies . . . not aboard aircraft but atop the mighty backs of fighting dragons. When HMS Reliant captures a French frigate and seizes its precious cargo, an unhatched dragon egg, fate sweeps Capt. Will Laurence from his seafaring life into an uncertain future–and an unexpected kinship with a most extraordinary creature. Thrust into the rarified world of the Aerial Corps as master of the dragon Temeraire, he will face a crash course in the daring tactics of airborne battle. For as France’s own dragon-borne forces rally to breach British soil in Bonaparte’s boldest gambit, Laurence and Temeraire must soar into their own baptism of fire.