Four award-winning authors. Four amazing alternate histories. In this collection of novellas, four masters of alternate history turn back time, twisting the facts with four excursions into what might have been. Bestselling author Harry Turtledove imagines a different fate for Socrates (now Sokrates); S. M. Stirling envisions life in the wilds of a re-barbarized Texas after asteroids strike the earth in the 19th century;...