Synopsis: Can Flat Stanley save Christmas in this holiday-themed chapter book adventure?Santa Claus is not his usual, jolly self. In fact, he's in a terrible mood. He doesn't believe that children appreciate Christmas anymore. This year, he has decided that he is not going to deliver any Christmas presents!Luckily, his daughter, Sarah Claus, knows who to call for help. The Lambchop family! But can they convince Santa that there are still good children in…