The epic conclusion in the blood-poundingly brilliant Department 19 series, from bestselling author, Will Hill.

The brave men and women of Department 19 have fought Dracula at every turn, but now Zero Hour has passed and the ancient vampire is at full strength.

Inside Department 19, the Operators are exhausted and fractured. Jamie, Larissa, Matt and Kate are each struggling with their own demons. When the friends need each other most, they are further apart than ever.

Outside the Department, the world reels from the revelation that vampires are real. Violence and paranoia spread around the globe and, when it finally comes, Dracula's opening move is more vicious than anyone could have imagined.

A final battle looms between the forces of darkness and the last, massed ranks of those who stand against it. A battle that will define the future of humanity. A battle that simply cannot be lost...