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Paul William Anderson (1926-2001) is a famous American science fiction writer, a multiple winner of the most prestigious awards in the field of science fiction - the Hugo, Nebula, Locus, and other awards. Despite the dozens of novels, one of his most interesting cycles is the Time Patrol, dedicated to the work of the temporal security service, which operates in all time and space points of the world, ensuring the protection of human history from outside interference and preventing its unauthorised changes that could lead to the erasure of the reality we know and its replacement with an alternative version.

An alternative history will always serve as a fascinating field for thought experiments, such as what would have happened if the Roman Empire had continued to exist instead of disappearing, or if Europeans had been late in discovering America? The course of history would have changed radically, and the world as we know it today would never have existed. These are the threats of interference in the course of history that the Time Patrol, a powerful organisation that operates everywhere and always, in all times of all conceivable eras, is up against.

The Time Patrol story cycle is dedicated to temporal and historical paradoxes, as well as to the extremely difficult but also terribly exciting service of its employees, who, in addition to incredible adventures in all eras, sometimes have to face quite complex and unusual moral and ethical dilemmas, as well as make quite difficult and painful choices, saving our reality from collapse.