Hamish has to save the world again when the inhabitants from an alternative London try to take over the real world.
Nobody knows it yet, but the people of Earth are in big, big trouble.
Like – HUGE trouble. Oh, come on, where's your imagination? Double what you're thinking!
It involves a shadowy figure, an enormous tower, some sinister monsters, an army of huge clanking and thundering metal oddballs, and people who are just like you… but not like you at all.
So now you have a decision to make: read this book and discover a secret that will change your life FOREVER or run away screaming while you can…
