Hidden in CIA agent Denis Slater's safe is an ancient reliquary found in the ruins of an old English abbey. In a secret compartment, embedded in a thousand years of rust, lies the definitive proof of the Lowenstein experiment, the astounding evidence of the CIA's greatest secret. Brilliant young physicist Ira Lowenstein claimed to have developed a method of time travel, and offers it to the government; his only proviso, that he first use it for a trip back in time to uncover a family secret. But once they've seen that it works, the CIA insists on having it immediately. The order goes out to arrest Lowenstein. Now Ira must play a deadly game of cat-and-mouse to start his mission. A mission that will take him back to World War II New York, an arrest for treason and an audience with a dying president that will rewrite the course of world history. Herbert Cohen's THE CUBE ROOT OF TIME is a well crafted ingenious thriller; a successful blend of science fiction, espionage and romance.