This is the third story about Dilly Duck and Dally Duck. The two little ducklings get lost when they follow a little green frog into the long grass. Blue level titles introduce children to sentence structures and common word endings. This level also teaches how to read with insight, encouraging children to stress words in bold type for example. PM Plus Storybooks feature a classic story structure with tension, climax and resolution to engage young readers. The books have been written using carefully selected vocabulary to ensure children experience reading success. #pm19-offer