from the dust jacket: In the year 2042, Sierra, a young graduate student, is shown a new dialog of Socrates, recently discovered, in which a time traveler tries to argue that Socrates might escape death by use of a clone and travel to the future. Thomas, the elderly scholar who has shown her the document, disappears, and Sierra immediately begins to track down the origins of the manuscript, with the help of her classical scholar boyfriend, Max. The trail leads her to time machines in gentlemen's clubs in London and in New York, into the past and into the future. Complications, mysteries, travels, and time loops grow as Sierra tries to discover who is planning to save the greatest philosopher in human history, or do so herself. Historical characters who make appearances include not only Socrates, but Plato, Alcibiades, Benjamin Jowett, William Henry Appleton - the great 19th century American publisher - and the ancient inventor Heron of Alexandria.
And here's a link to the first chapter, free...