Welcome to Rockhead Primary, a school so ordinary even the teachers think it's boring. But things start to change when a builder knocks down an internal wall and reveals something totally weird... Now the school has been invaded by an invisible intruder from another galaxy. Verna Lee and Jamie Ballard investigate, but our dynamic Year 6 duo are stumped by the alien's antics. Can they track it down and save the human race from a terrible fate? Can they even save themselves? The answers to all these questions are inside this book. Open it...if you dare! Forbidden Classroom: The Intruder is part of the Astro range from Rising Stars Reading Planet. Astro books are ideal for struggling and reluctant readers aged 7-11. Each book is dual-banded so that children can improve their fluency whilst enjoying exciting fiction and non-fiction relevant to their age. Reading Planet books have been carefully levelled to support children in becoming fluent and confident readers. Each book features useful notes and questions to support reading at home and develop comprehension skills. Interest age: 9-10 Reading age: 7-8 years