Cheryl Orsini

Maddy and her friend Cate are in Egypt on a school trip. They keep seeing a mysterious man in a black suit. Then they look in Cate's bag and are shocked at what they find. Should they tell somebody about their discovery? Why is the man in black following...

CHOIR is the Central Headquarters of the Organisation for Invention and Research. It's top-secret! At CHOIR, highly intelligent young people make new inventions that will help the world. Harley Baxter has invented a robot. It's so life-like that he is sure nobody will ever know it's a robot. But...