Dan the scientist works with dolphins. Ludo the dolphin is under the water and can't breathe, so Rosie dives in to help him. But what happens? The sea can be dangerous - there might be sharks!
Oxford Read and Imagine is a fiction graded readers series that invites young readers into an exciting world of great stories. Follow Rosie, Ben, Grandpa and his robot Clunk on their adventures in Grandpa’s fantastic van.