The Battle for Earth

A kidnapped girlfriend. A magical sorceress. A planet under attack. A world that faces two threats.
 

The Tagaar are an ancient race of warrior aliens. They're determined to make our planet their ownâ€"and they intend to use our teenage superheroes to help them do it. Kidnapping Brodie, the Tagaar promise her safe returnâ€"if Axel steals the deadly Stonekiller weapon. It's a weapon that can turn a person to a block of stoneâ€"but they do not die. Instead, they are condemned to exist as a living statue forever.
 

And the person they want Axel to use it on is the Russian President…
 

If things aren't bad enough, the ancient sorceress, Morgan le Fay has made a reappearance. She's centuries old and is one of the most powerful humans to have ever lived. She has the ability to take away anyone's free will. Whilst under her spell, a person can be forced to do anything she commands.
 

And she doesn't care who she hurts…