An exciting new illustrated chapter book series for dog-loving readers from writer Helen Moss and artist Misa Saburi! When a pack of senior dogs find themselves transported back in time--and turned into puppies!--they must make their way back home, helping real-life historical dogs along the way. In this second story, Time Dogs: Seaman and the Great Northern Adventure, Baxter, Trevor, Newton, Titch, and Maia--the time dogs!--find themselves transported through time and space to 1805 on the Missouri River. There, deep in the wilderness, the puppies must help Seaman, the dog of legendary explorers Lewis and Clark.