Leyla's Missing

When Leyla goes missing one day, the rest of the Rescue Riders go out on a search to try and find her. Where has Leyla gone? And will the other Rescue Riders be able to find her? But does Leyla want to be found? Or is she just out on a little walk to be alone for a while? Well, the Rescue Riders will never know the truth until Leyla is found.