Don't worry. Zombies aren't coming. That's almost certain. Obviously, zombies could be on their way to break down your front door and munch on your brainy bits, but they're probably not. So try not to panic, ok? Good. But, if they do come, wouldn't it be fun to have some puzzles and activities to kill the time while you're locked indoors with absolutely no chance of escape? Of course it would! That's where this book comes in. Nice, isn't it? Oh, and it's based on the smash-hit Plants vs. Zombies video games.