Page 379. " We can hear when the air raids are coming "
Air Raid Siren
Creative Commons Attribution Share AlikeAir Raid Siren - Credit: MdE (de)
As well as placing listening devices on the frontiers, the German army employed look-outs in all major cities and urban areas, who sounded a siren when they saw enemy planes approaching. All lights in the target area would be extinguished, while radio announcements warned of the danger. 
Page 381. " They didn’t need a Luftschutzwarte "

The Luftschutzwarte was in charge of supervising and keeping calm and order in large air raid shelters.

Page 396. " and many steps more to the concentration camp at Dachau. "

Dachau was the first concentration camp to be built by the Nazis.

For more  information, see Setting.

Page 397. " And it’s perfect weather for a parade, don’t you think? "

In the following pages, Zusak recounts a fictionalised version of the story his mother told him, which was the inspiration for The Book Thief.