The Thirteen Series by J.L. Murray

Warning: This book contains strong language, zombies, knives, guns, and violence. In a world ravaged by disease and chaos, Jenny has a secret. She and her brother were part of a gruesome experiment conducted ten years earlier in an attempt to stop the zombie apocalypse. If the rumors are true, her mother was the hated pathologist who released the disease in the first place, leading to the destruction of government, civilization, and life as we know it... moreWarning: This book contains strong language, zombies, knives, guns, and violence. In a world ravaged by disease and chaos, Jenny has a secret. She and her brother were part of a gruesome experiment conducted ten years earlier in an attempt to stop the zombie apocalypse. If the rumors are true, her mother was the hated pathologist who released the disease in the first place, leading to the destruction of government, civilization, and life as we know it.Despite the constant terror of the undead, Jenny is as happy as a post-apocalyptic girl can be. She has friends, she's good with a knife, and she has Declan Munro by her side. But when she hears her brother might still be alive and living with the Underground, a religious group hiding in the now-defunct subway, Jenny jumps at the chance to find him. She infiltrates the group to right the wrong she caused when she ran away, leaving him in that lab.When she finds him, though, Casey is not at all what she expected. He's been turned. And the impossible happens when Jenny is bitten. She and Casey are dead, but they're not like any other rotters. Their minds are still intact. And there are others: Thirteen children survived the mysterious experiments, and it’s up to Jenny to find them and bring an end to the plague. But not everyone wants the chaos to end. Between battling her hunger for living flesh and the all-encompassing rage that goes with it, and the realization that a killer is stalking both the living and the undead, Jenny has her hands full. Coming between a dead girl and the people she loves is a big mistake. Because if you can count on one thing, it's this: You wouldn't like her angry. less

"What have I become?"Jenny always lives to fight another day. But she’s not so sure she wants to. She saved Declan, and he hasn’t come back quite right. And after meeting a group who call themselves The Thirteen, Jenny is convinced that she would be better off on her own.But when the group is attacked at her mother’s old bunker, Jenny wakes up to find her little undead family in tatters, the newcomers gone, and one of her friends missing... more"What have I become?"Jenny always lives to fight another day. But she’s not so sure she wants to. She saved Declan, and he hasn’t come back quite right. And after meeting a group who call themselves The Thirteen, Jenny is convinced that she would be better off on her own.But when the group is attacked at her mother’s old bunker, Jenny wakes up to find her little undead family in tatters, the newcomers gone, and one of her friends missing. If she wants to find him, she’s going to need to talk to someone she’d much rather kill: her mother. In the process, Jenny finds that she has a much larger family than she thought.Yet nothing is ever as it seems. And on a journey that started with Jenny hopeful that she could save the world, she’s more than sure it’s going to end in despair. To save the people that she loves, Jenny is going to have to get angry. To save the people she loves, she’s going to have to kill. To save the people she loves, she’s going to have to die. Again and again and again and again… less