Well, Shmoopers, this title is tricky. Tomorrow, When the War Began isn't exactly written in a grammatically familiar way: "Tomorrow" points to a period of time that hasn't happened yet while "began" points to something that's already started. Weird, right? Then again, it's a weird book—pretty much everything is off, from Hell being the safest place around to the typical high school social hierarchy being inverted so the most popular kid has the least to offer. In this way, the unsettled feeling the title hurls at readers lays the foundation for their reading experience. It also gives readers a heads up that war is going to be a major player in the book, which it most certainly is.