"Dogs know humans better than they will ever know us." Captain Lewis's Newfoundland pup, Seaman, accompanies Lewis and Clark on a path that will make history. With his adventurous and curious spirit, Seaman proves himself to be a loyal companion at every turn. But can this astonishing dog pick his captain up when he needs it most? This exhilarating tale, part history and part science, including actual text from Lewis's journals, celebrates one of America's greatest journeys of discovery.

Includes an author's note and a reader's guide.