One night Katie Morag is a little bit worried because Grannie Island doesn't flash her torch to say goodnight like she normally does. So the next morning she and her mother go to check that all is well. They discover that far from being well, Grannie Island has hurt her back and can't get out of bed, but didn't want to trouble anyone. Katie Morag thinks that Granma Mainland will be able to help, but Grannie Island doesn't agree at all!