On page 114 the author wrote, "Fritz looked up at me, his eyes burning with curiosity. I wrote one more word : Tunnel" This shows she is willing to go all out to make sure her family escapes together to freedom.
On page 275, "My family would never leave. They wouldn't dare.....not after the way Peter died." Anna told Gerta that she wouldn't escape because she was too afraid of the way Peter(her brother) died.
"You can't stop me. My mind is made up. I am going to leave tonight." page 114. Fritz had written this on a piece of paper to Gerta. He wanted to leave East Berlin behind. He wanted to take his mom and Gerta but he decided he had to leave and it would be too risky for them.
"No. You will not go back to the tunnel. It's too risky." Page 174. There mother is scared that they will get caught and shot by the Stasi like many have before. She wants to keep her family safe no matter what. Even if half of her family is on the other side of the Berlin wall.