Whatever the problem, Archie has an invention that can help. However, when a group of dogs go missing, Archie faces her biggest challenge yet. Can she save the day?Archie loves solving problems with her own inventions! One night, Archie spots something mysterious, and she is keen to get to the bottom of it. Is the mystery too big for Archie to solve? Can Archie and her inventions save the day?This book is from Readerful's Independent Library. It is for children aged 6 to 7 to read without support. Readerful: Inspiring Children to Read MoreReaderful is a specially designed reading library that motivates children aged 4-11 to develop a lifelong love of reading. The series offers contemporary, inclusive books across three key collections: Books for Sharing: Picture books to be read aloud by an adult for inspiring reading sessionsIndependent Library: Fiction, graphic texts, character mini-series and non-fiction for children to read independentlyRise: Fully decodable books for older struggling readers to read independently.How Readerful works: &#8226 Read aloud the Books for Sharing for magical reading sessions that motivate children to read more. &#8226 Encourage children to choose a book to read by themselves, from Readerful's Independent Library or from Rise. You'll find links between the books' topics, vocabulary, characters and authors - all designed to keep children reading, boost their vocabulary and develop their knowledge of the world around them.