Oxford Reading Tree Treetops Fiction: Level 12: The Lie Detector (UK)Paperback - UK, 9 January 2014

In 'The Lie Detector' Gemma's friend says that Gemma tells lies. Gemma's friend wants to teach her a lesson, so she makes a lie detector. But who needs the lesson most? 'TreeTops Fiction' contains engaging novels from top authors and illustrators with the variety children need to develop a love of reading!