The Walking Dead, Book 8: Made to Suffer

The world we knew is gone. The world of commerce and frivolous necessity has been replaced by a world of survival and responsibility. An epidemic of apocalyptic proportions has swept the globe, causing the dead to rise and feed on the living. In a matter of months society has crumbled: no government, no grocery stores, no mail delivery, no cable TV. In a world ruled by the dead, the survivors are forced to finally start living.
The series that created the zombie movement reaches its most pivotal, series-altering arc yet! They thought they were safe in the prison. They were wrong. A force far more deadly than the walking dead is at their door and when the dust settles, their rank will be reduced by more than half. No one is safe!