Errol enjoys going to town on Saturday mornings with his family. They go to the post office to buy a scratch card each week. But this week the scratch card causes all sorts of trouble for Errol. For the best children's books, reach for the stars!. Errol enjoys going to town on Saturday mornings with his family. They go to the post office to buy a scratch card each week. But this week the scratch card causes all sorts of trouble for Errol.