Between the Robots novels and the Foundation series is the Empire Trilogy: three classic works by Isaac Asimov tracing the beginnings of human expansion across the Galaxy up to the rise of the Galactic Empire with its capital on Trantor. In Dust of stars, a rancher from an agricultural world and the princess of a sophisticated nebular kingdom must join forces to try to find the rogue world that is the last hope against the tyrannical empire that oppresses them. In The currents of space, the discovery of a space analyst jeopardizes the dependent relationship between Florina, the only planet where the precious kyrt is grown, and their masters on Sark, in a conflict that affects the expansion of the Trantor Empire. In a pebble in the sky, a man of our day is catapulted into the distant future, when the Imperium spans the galaxy and Earth is but a speck lost among millions of inhabited worlds, who scoff at its pretenses. Ions to be the origin of mankind. But the Earth prepares its revenge...