This is a 2-in-1 book for readers aged 7 to 11 years old. In the fiction text, Fred is looking out for animal tracks. Has he stumbled across a big cat? In the non-fiction text, match the tracks and marks to the animal. The Tracker is at Oxford Reading Level 4. It is a fully-decodable book for pupils who are working below expected standard in their reading. The Readerful Rise series ensures that older struggling readers have high-low books with age-appropriate content and topics, that look like the books their peers are enjoying, but are written at a level they can read successfully.