Ladybird 
Mystery Drone: Read It Yourself -Level 4 Fluent Reader 

When Megan and Billy find a drone with an important message on it, they know they must find its owner. Find out how Bess the dog, Dad, and lots of cool gadgets help them in their quest. The Mystery Drone is from Fluent Reader Level 4 and is ideal for more fluent readers aged from 7+ who are starting to read independently.Each book has been carefully checked by educational and subject consultants and includes comprehension puzzles, book band information, and tips for helping children with their reading.With five levels to take children from first phonics to fluent reading and a wide range of different stories and topics for every interest, Read It Yourself helps children build their confidence and begin reading for pleasure.