A prickly porcupine protects himself by bravely shaking his tail of sharp spikes in the face or a menacing predator. This may appear humorous to the reader, but to the porcupine it is his only means of defence. violet level titles introduce a variety of topics to promote reading for pleasure & offer plenty of opportunities to look at rhyme & rhythm within words to build fluency & phrasing. PM Plus Storybooks feature a classic story structure with tension, climax & resolution to engage young readers. The books have been written using carefully selected vocabulary to ensure children experience reading success. pm 19-offer