Keeper of the Empire: Keeper Series

The Vorgs have landed! They're grotesque, they spit venom and Mattis is about to be their next victim. In the 3rd book of the Keepers series, Matt finds himself in a terrifying world. With the help of his friend Targon and a daring girl named Angel, Matt must locate the secret hideout of the Govan Resistance. There is no end to the action and excitement as Matt attempts to track down the Keeper, and wen the next level of his computer game.