The Enemy by Charlie Higson

In a post-apocalyptic world, adults are infected and become zombie like creatures that are scattered all around. The surviving children of this generation formed groups that stay in hideouts all around London. This story follows the character Small Sam who has been captured by these zombie-like adults and later finds himself far away from his teammates. Hope is not lost for Sam when he is saved by an uninfected adult, Nick and tries to survive with his family. On the other side of the situation, Arran(leader of the surviving children) has grown tired of the increasing death the children. He has set out with other skilled children to find Small Sam, but they find themselves in more trouble than they have anticipated. The Enemy is definitely a book series that should be recommended to anyone who wants to read a horror or adventure book. Each character has so much depth and has a story behind them. The plot has twists and turns that would keep anybody dying for more.   -Calvin Chen (Period 3)