This delightful children's book, written & illus. by Tomi Ungerer, tells the story of Mr. Zeno Krall & his wife Colza, an expectant cat couple. But when their baby is born, to their great surprise he is a dog! ''How can it be? What shall we do?'' he asks his wife. ''Love him, he is ours,'' she replies, & they welcome their new son, Flix. Growing up as a dog in Cattown is a tough experience for Flix. But he learns to climb trees & do all the things cats do, while his godfather teaches him to speak Dog, & do all the things dogs do. Flix's ability to be at home in both worlds proves a big advantage when he races up a tree to rescue a poodle from a burning building. When he later marries this same poodle, their first child turns out to be -- to their surprise -- not entirely as expected!