No Fooling (Cork and Fuzz, Penguin Young Readers, Level 3)

Cork is a muskrat who likes small, safe adventures. Fuzz is a possum who likes big, exciting adventures. Fuzz convinces Cork to go with him on a snowy exploration, but Cork is scared of the big animals they might encounter. When Fuzz pretends he has seen a dangerous animal, he only makes Cork more scared. Then, like the Boy Who Cried Wolf, Fuzz really does run into a big animal - a puppy! Both friends discover how brave they really are, and learn when it is and isn't okay to fool someone you care about.