Ages 5 to 8 years. When Seaman, a Newfoundland dog, met his new master in August of 1803, he did not know that he would spend the next three years on an adventure of over 8,000 miles to the Pacific Ocean and back. The book is based on actual entries in Meriwether Lewis's journal describing Seaman, and it presents an account of the Lewis and Clark expedition as seen from the viewpoint of Lewis s dog. Join Seaman before the trip as preparations take place. Meet the Native American guides and friends they encountered along the way. And read of Seaman s love for Sacajawea, the Shoshone woman whose husband acted as interpreter and guide.