Book excerpt: A nineteenth-century sailor must navigate a future world of airships and soaring whales in the Hugo Award–winning author’s sci-fi sequel to Moby-Dick. When the whaling ship Pequod is destroyed, Ishmael is the lone survivor to escape a watery grave. But shortly after his rescue, he finds himself slipping through a rift in time and space—into a future Earth. In this strange new world, he encounters bloodsucking vegetation and a blood-red sun. Here, too, there are whales to hunt—but whales that soar like airships through the alien sky. With no seas to sail and no safe harbor to call home, Ishmael must take to the heavens. And so he embarks on wild new adventures that include being hunted by air-sharks, wild aerial battles on floating ships, journeys through booby-trapped labyrinths, hand-to-hand combat, and much more derring-do.