Robert Benton is summoned to a meeting by the Control Office, where he is that a patent application he filed for an invention has been unsuccessful, as the invention could threaten Stability. Benton is surprised, because as far as he was aware he had not filed any such application. Returning home with a set of plans and prototype device given "back" to him by the office, he discovers it to be a time machine. Activating the device, Benton finds himself transported to an unknown point in history and confronted with what appears to be a living city contained in a glass globe. Despite being warned not to by a mysterious voice claiming to be a "guardian" against evil, Benton feels compelled to take the globe; it then telepathically informs him how to use the machine to return to his own time. Benton does so, but travels to a point in time shortly before he originally left, and deposits his "invention" and the plans at the Control office as a patent application, creating a bootstrap paradox. After Benton leaves, the Controllers deduce what has happened and go to Benton's home in order to end the threat to Stability. Discovering Benton and the city, one Controller recounts hearing an ancient story of an evil city that had been enclosed in glass for the protection of everyone else. The Controllers attempt to take the globe from Benton, but it breaks, releasing a strange mist, and Benton loses consciousness. Benton awakes to find himself living in a city where the human inhabitants exist only to service "their Machines". However, neither he nor anyone else has any memory of things being any different; as far as they are aware, life has always been like this.
Author

Philip K. Dick was born in Chicago in 1928 and lived most of his life in California. In 1952, he began writing professionally and proceeded to write numerous novels and short-story collections. He won the Hugo Award for the best novel in 1962 for The Man in the High Castle and the John W. Campbell Memorial Award for best novel of the year in 1974 for Flow My Tears, the Policeman Said. Philip K. Dick died on March 2, 1982, in Santa Ana, California, of heart failure following a stroke. In addition to 44 published novels, Dick wrote approximately 121 short stories, most of which appeared in science fiction magazines during his lifetime. Although Dick spent most of his career as a writer in near-poverty, ten of his stories have been adapted into popular films since his death, including Blade Runner, Total Recall, A Scanner Darkly, Minority Report, Paycheck, Next, Screamers, and The Adjustment Bureau. In 2005, Time magazine named Ubik one of the one hundred greatest English-language novels published since 1923. In 2007, Dick became the first science fiction writer to be included in The Library of America series.