This book is a gripping young adult fiction titled "Tomorrow, When the War Began" by John Marsden. Published in 2006 by Scholastic Inc., it is the first in the Tomorrow series. The format is a digest paperback with English language, ideal for young adults intended audience.

The story is set in Australia and follows a group of teenagers who, while camping in the wilderness, return home to find their country has been invaded and occupied by a foreign army. The book is packed with action and adventure while exploring themes of survival, loyalty, and sacrifice. It is a must-read for fans of action and adventure, and those interested in people and places in Australia and Oceania.