Darren Shan 
Zom-B: Volume 2 Underground [EPUB ebook] 
ZOM-B Series, Book Two

As the undead continue their rampage across the U.K., teenage hero B awakens in an underground bunker, held prisoner by scientists and soldiers and surrounded by zombies that are unlike those annihilating humans above ground. B is trapped but secure-until the complex is attacked by a pack of mutants and their sinister leader, Mr. Dowling. Is there any safe place left in the world? The second instalment in Darren Shan’s thrilling new series will leave readers trembling in terror and clamouring for more.