New York Times bestselling author Julie Kagawa continues her transcendent dystopian series, BLOOD OF EDEN, with an unforgettable journey into a future world that illuminates the very heart of what it means to be human.

Allison Sekemoto has done the unthinkable: died so that she might continue to live. Cast out of Eden and separated from the boy she dared to love, Allie will follow the call of blood to save her creator, Kanin, from a psychotic vampire. But there's a new plague on the rise, a strain of the Red Lung virus that wiped out most of humanity generations ago – and this strain is deadly to humans and vampires alike.

Allison thought that immortality was forever. But with eternity itself hanging in the balance, the lines between human and monster will blur even further as Allie faces another choice she could never have imagined having to make...

'Kagawa wraps excellent writing and skillful plotting around a well–developed concept and engaging characters, resulting in a fresh and imaginative thrill–ride that deserves a wide audience.' – Publishers Weekly, starred review, of The Immortal Rules