"Woof! Woof! Woof!" says Buster. "WOOF! WOOF! WOOF!" answers the very large dog across the valley. At least Buster thinks it's a very large dog. But Rooster hears a giant rooster, Cow a terrible bull, and Little Mouse a mean rat (who no one else can hear, but "they're all too polite to say."). Children will love following this brave if misguided foursome as they seek out the elusive animals who frighten them in order to chase them away. Buster, Rooster, Cow and Little Mouse are boldy realized in Webster's charming, humorous illustrations that span each double-page spread. (Ages 2-4)