Biron Farrell was young and naïve, but he was growing up fast. A radiation bomb planted in his dorm room changed him from an innocent student at the University of Earth to a marked man, fleeing desperately from an unknown assassin. He soon discovers that, many light-years away, his father, the highly respected Rancher of Widemos, has been murdered. Stunned, grief-stricken, and outraged, Biron is determined to uncover the reasons behind his father’s death, and becomes entangled in an intricate saga of rebellion, political intrigue, and espionage. The mystery takes him deep into space where he finds himself in a relentless struggle with the power-mad despots of Tyrann. Now it is not just a case of life or death for Biron, but a question of freedom for the galaxy.

High above the planet Florinia, the Squires of Sark live in unimaginable wealth and comfort. Down in the eternal spring of the planet, however, the native Florinians labor ceaselessly to produce the precious kyrt that brings prosperity to their Sarkite masters. Rebellion is unthinkable and impossible. Not only do the Florinians no longer have a concept of freedom, any disruption of the vital kyrt trade would cause other planets to rise in protest, ultimately destabilizing trade and resulting in a galactic war. So the Trantorian Empire, whose grand plan is to unite all humanity in peace, prosperity, and freedom, has stood aside and allowed the oppression to continue. Living among the workers of Florinia, Rik is a man without a memory or a past. He has been abducted and brainwashed. Barely able to speak or care for himself when he was found, Rik is widely regarded as a simpleton by the worker community where he lives. But as his memories begin to return, Rik finds himself driven by a cryptic message he is determined to deliver: Everyone on Florinia is doomed . . . the Currents of Space are bringing destruction. But if the planet is evacuated, the power of Sark will end—so some would finish the job and would kill the messenger. The fate of the Galaxy hangs in the balance.

One moment Joseph Schwartz is a happily retired tailor in 1949 Chicago. The next he's a helpless stranger on Earth during the heyday of the first Galactic Empire. Earth, he soon learns, is a backwater, just a pebble in the sky, despised by all the other 200 million planets of the Empire because its people dare to claim it's the original home of man. And Earth is poor, with great areas of radioactivity ruining much of its soil—so poor that everyone is sentenced to death at the age of sixty. Joseph Schwartz is sixty-two. This is young Isaac Asimov's first novel, full of wonders and ideas, the book that launched the novels of the Galactic Empire, culminating in the Foundation books and novels. It is also one of that select group of SF adventures that since the early 1950s has hooked generations of teenagers on reading science fiction. This is Golden Age SF at its finest.