Robbie Mc Dragon, ace detective, discovers that George the dragon slayer is up to no good in McDragon country. Robbie tries to find a way to get rid of the dragon slayer, and we read of his efforts in the pages of his casebook. Age 8+. Pack of 6. Collins Skyracer is a new guided reading series of 96 chapter books for ages 7-11. * Skyracer Blue titles are aimed at Year 4 children * Engaging text will hold the interest of all readers. * Breathtaking colour illustrations engage pupils and encourage discussion.