Part book. Part comic. One electrifying superhero adventure! Holly Sparkes returns to Blue Haven after her summer holiday to find some strange goings on. Weird green slime is oozing out of the ground, there's been a spate of mysterious robberies, and worst of all she's losing control of her electrifying super-powers. If she could only stop blowing things up, she might just be able to save the day ...again! A great read for both boys and girls, with fast paced and exciting plots, this is perfect for comic book and superhero fans. Ages 9+