Balto and the Race Against Time (Time Dogs, Bk. 1)

Five 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 first adventure, Baxter, Trevor, Newton, Maia, and Titch - the Time Dogs! - hurtle through time and space to 1925 Alaska. There, deep in the wilderness, the puppies must help Balto in his famous sled race to deliver medicine during a diphtheria outbreak.