The Gate of WorldsRobert Silverberg
science fiction, alternate history
In this alternate history novel, the Bubonic Plague sets the stage for a world where the West is powerless. After the Black Death has wiped out most of the European population, there is little defense against Turkish invasion and expansion, and by the 1980s, the major world powers are the Russians, the Turks, the Aztecs, the Incas, and the Japanese.
However, the Turks have lost much of their territory, leaving England to self-rule in a delayed Industrial Revolution. Dan Beauchamp, a young Englishman whose heart longs for fortune and adventure, travels to industrial Mexico and discovers that he has a lot to learn. From the city of London — better known as New Istanbul — to the untamed wilderness of North America, here is a high adventure in an alternate history that is not to be missed.