After a brief return to Versailles, Eliza joins Elizabeth Charlotte of the Palatinate at her estate before the invasion of the Palatinate in her name. Eliza informs William of Orange of the troop movements caused by the French invasion which frees his forces along the border of the Spanish Netherlands, a region of stalemate between France and the Dutch Republic. During her flight from the Electorate of the Palatinate, Eliza becomes pregnant by Louis's cryptographer, though popular knowledge suggested it was the French nobleman Etienne D'Arcachon's child. Meanwhile, William takes the free troops from the border on the Spanish Netherlands to England, precipitating the Glorious Revolution, including the expulsion of James II. James flees London and Daniel Waterhouse soon encounters him in a bar. Convinced that the Stuart monarchy has collapsed, Daniel returns to London and takes revenge on Jeffreys by inciting a crowd to capture him for trial and later execution. Though he plans to depart for Massachusetts, Daniel's case of bladder stones increasingly worsens during this period. The Royal Society and other family friends are very aware of this and force Daniel to get the stone removed by Robert Hooke at Bedlam. A 2003 interview in "Newsweek" quotes Stephenson's belief that "science fiction... is fiction in which ideas play an important part." Central to "Quicksilver" is the importance of the Enlightenment. By placing the reader among a world of ideas that change the course of science, Stephenson explores the development of the scientific method. One theme Stephenson explores in "Quicksilver" is the advancement of mathematical sciences which in turn led to important applications: Leibniz's theory of binary mathematics became the foundation upon which to develop computers. As he did in "Cryptonomicon", Stephenson highlights the importance of networks and codes, which in "Quicksilver" occur against a "backdrop of staggering diversity and detail", writes Mark Sanderson in his review of the book for the "Daily Telegraph". Also, returning to his cyberpunk roots, Stephenson emphasizes the manner in which information and ideas are dispersed in complex societies. "Quicksilver" uses the "interactions of philosophy, court intrigue, economics, wars, plagues and natural disasters" of the late 17th and early 18th century to create a historical backdrop. From one perspective, the characters are most useful in their roles as "carriers of information". Although the characters use various techniques to disseminate information, the most prominent is cryptography. Elizabeth Weisse writes in "USA Today" that the use of cryptography is "Stephenson's literary calling card", as she compares "Quicksilver" to "Cryptonomicon".