An epic novel of seafaring adventure in the spirit of Patrick O'Brian, this novel brings to life not just the five-year-long Voyage of the Beagle, with all its adventure, mishaps and high drama, but also the intellectual sparring between the religious, emotionally unstable Fitzroy and Charles Darwin. Published as This Thing of Darkness in Britain, where it was short-listed for the Booker Prize.  (WLD85, $26.00)