Amund is visiting Granddad and Grandma and they are going to have some cake. he has to walk through the big, gloomy house to get to the bathroom and locks himself in. But when he is finished the can't get the door open. his grandparents rush to help him and try different ways to get him out. All turns out well, except for the cake!
This is a very simple, straightforward story that we can all relate to. The surprise ending is fun. There may be some giggles at the page when he is on the toilet- but don't let it stop you! Could talk about his need for independence vs his fear of being locked in.