Holly Sparkes is just your average 12-year-old, that is, until she's hit by a bolt of lightning. Now she has become EXTRAordinary Holly. Like a human battery Holly can generate a massive amount of electricity in seconds, which could come in handy if she's ever going to solve the mystery of her best friend's disappearance. Because when you're dealing with the likes of Professor Macavity and her mysterious CyberSky corporation, you need all the help you can get! This exciting sci-fi adventure story includes black-and-white graphic novel style illustrations.