Dollhouse : Epithaphs, book 5
Collectif et Joss Whedon2011

The Rossum Corporation's tech-induced apocalypse has spread worldwide. Now that the majority of the population is either a mindless killer or a mindless member of a makeshift army, Rossum is once again directing their attention to capturing Echo.
At the edge of Rossum's HQ, Alpha's small army of "dolls" are also attempting to find Echo--she's humanity's only hope for survival. Meanwhile, in Los Angeles, Mag, Griff, and Zone organize their new recruits to take down a radio tower that broadcasts Rossum's Wielder imprint.