A biography of a curious physician and the unusual patient who enabled him to carry out experiments concerning digestion.

Concerns the case of Alexis St. Martin, whose relations with Beaumont are summarized in the introduction.

A shotgun misfires inside the American Fur Company store in Northern Michigan, and Alexis St. Martin's death appears imminent. It's 1822, and, as the leaders of

The irresistible, ever-curious, and always bestselling Roach returns with a new adventure to the invisible realm that people carry around inside.