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 own—and they intend to use our teenage superheroes to help them do it. Kidnapping Brodie, the Tagaar promise her safe return—if Axel steals the deadly Stonekiller weapon. It's a weapon that can turn a person to a block of stone—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…