At the End of the story Gerta and Fritz showed empathy for their mother,father, and Dominic and were even willing to try to escape the Berlin wall to show just how much they wanted to be back to their family, because if they wouldn't have fought they would have never known if they would have even had a chance to reunite with their family. On page 254 it says, "Tears filled my eyes, but with such a filthy hand I could only let them fall. Behind me, even Fritz sniffled with emotion." In this part of the story it is showing Gerta's and Fritz's true emotion when they know they have a chance of seeing their family sometime soon. Therefore when Gerta, Fritz and Dominic learned the theme, that people should never give up on their families, the reader learned it also.