Hawk accepts her mother Max's help to prevent vengeful hybrids, amoral scientists, traitorous politicians, and a deadly virus from overwhelming her beloved, polluted city.

In the City of the Dead, life happens in the shadows. That's why a war is brewing against an enemy no one can see. For Hawk, being a hero weighs heavily on her wings. But Hawk and Maximum Ride never back down from a conflict, or from each other, and they argue more than they agree. As the dead begin to outnumber the living, a mother's experience and a daughter's instinct can make one powerful arsenal. -- adapted from jacket