Francis Hoodunit dreams about being a real-life detective. He is put to the test when a museum calls for help. Will Francis solve the mystery and prove himself to his family? Family Business is at Oxford Reading Level 10. It is for readers aged 7 to 11 years old who are working below expected standard in their reading. The Readerful Rise series ensures that older struggling readers have 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.