Collins Big Cat supports every primary child on their reading journey from phonics to fluency. Top authors and illustrators have created fiction and non-fiction books that children love to read. Book banded for guided and independent reading, there are reading notes in the back, comprehensive teaching and assessment support and ebooks available. Part of the Shinoy and the Chaos Crew non-fiction series, this information book ties into The Day of the Haunted House. Find out the answers to questions you've always wanted to know about secret codes. You probably use codes every day to communicate. Find out how secret codes were used to send messages, and how you can become a codebreaker.