Summary: Charles Stephen sets out on an evolutionary adventure as he discusses four Darwin-related books: "Charles Darwin: The Beagle Letters," edited by Frederick Burkhardt; "The Annotated Origin: A Facsimile of the First Edition of On the Origin of Species," introduced by James T. Costa; "Charles and Emma: The Darwins' Leap of Faith" by Deborah Heiligman; and "Living Witness," the latest addition to the Gregor Demarkian series by Jane Haddam.
