Firstly, change affected the environment around the teenager’s in the novel as houses, farms and streets were blown up, set on fire or bull-dozed. The characters Kevin and Robyn reported on the devastation of Wirrawee “forty people have been killed… QUOTE ABOUT THE SHOWGROUNDS TURNING INTO A CONCENTRATION CAMP AND SOMEBODY’S HOUSE HAVING BLOWN UP. This shows that the environment around the teenagers has been changed dramatically, especially the knowledge that forty people had lost their lives in such a small country town. Therefore, change was a significant theme in the novel Tomorrow, When the War Began because now the teenagers would be forced to respond to this new dangerous environment and the worries they shared about what had happened to their families.
Secondly, change affected the way the teenagers had to start living. They had to turn into a “slick guerrilla outfit”. One that moved around at night, and lived off the land. They had to make camp in their safe haven “Hell” and plan raids against the attackers. USE QUOTES FROM THE BOOK ABOUT LIVING OFF THE LAND AND BECOMING A GUERILLA OUTFIT. From these examples we can clearly see that the teenagers realised they had to change the way they lived to respond to the new danger to their environment, making change an important theme in Tomorrow, When the War Began by John Marsden.