Melanie Joyce 
Labyrinth 

The Full Flight series of reading books are for children and young adults aged 8 to 14 and over who are struggling to read. Each book has been carefully written for those with a reading age of approximately 7 to 8, but are packed full of adventure and brilliant illustrations to really grab the reader interest. Lexie and John are going to find out the hard way that not all is what it seems once the Labyrinth has you.