Our city. Our secret. Our rules.
Alone. On the run. Ollie Turner has nowhere to hide.
But he gets a second chance. Underneath the city there's a secret organisation, far from adult eyes.
It's called the Haven.
Soon Ollie is caught up in their battle: to stop Maddy Sikes destroying the city. Time is running out for Ollie and his new friends, and millions of lives are at stake ...