Paola -Hans Brinker or The Silver Skates

The book I'm currently reading is about two poor siblings, Hans and Gretel Brinker. They are very poor because their father had an accident and their mother doesn't earn enough money. They really like to skate , but can't very well because their skates are made out of wood. Fortunately for them, they get some money to buy some new skates and get invited to a race. Meanwhile, some rich kids have a journey to Amsterdam (the  whole story takes place in Holland) . The rich kids are very mean to Hans and Gretel. So far overall, the story is about Hans and Gretel and how some rich , snobby kids are mean to the because they are poor, while Hans and Gretel suffer because they can't accomplish their dreams because of their poorness. It's kind of sad.