Angus and Sadie are brother and sister. Angus is bigger. He is a good, brave, and clever dog. Sadie isn't as quick to learn-or obey. The story follows Angus and Sadie growing up on a farm in Maine. Great new children's book for grades 4-6 by Cynthia Voight and Tom Leigh(Illustrator). A great story for all animal lovers. Hard cover 194 pages.