In this book, Will dreams of being a pilot, so he's sneaked on to an airship to America. He isn't the only stowaway, though. Lucky is at Oxford Reading Level 8. 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.