Cal has a new dog, and it has an amazing special power - its ears twirl when someone is telling a lie! The Dog of Truth helps Cal learn when people are telling fibs - but Cal soon discovers that it's difficult to hear the truth all the time ... especially about yourself.Oxford Reading Tree Story Sparks is an emotionally-engaging fiction series that will fire children's imaginations. These 36 original stories will get children thinking, and develop and deepen their comprehension skills. The variety of authors and illustration styles broadens children's reading experience, with something to appeal to every child. All the books in the series are carefully levelled, so it's easy to match every child to the right book for them. They also contain inside cover notes, to enable parents and teachers to support children in their reading. Help with children's reading development is also available at www.oxfordowl.co.uk.