The End of Everything Book Four

Two sisters, one nightmare. They escaped the cities. They lived through the storm. But there are more dark clouds forming on the horizon for Wren and Robyn. The undead have made escape impossible. Ruthless gangs patrol the highways and danger lurks in the shadows. A new friend, a new settlement and things are looking up, though all is not what it seems. In no time at all they find themselves in the worst kind of trouble. Now they have to pick a side. Whose will they choose? Safety comes at a price. Is it one they're willing to pay?