London, 1963. A cryptic phone call forces ex-MI6 agent Andrew Hale to confront the nightmare that has haunted his adult life: an ultra-secret wartime operation, codenamed Declare.

Operation Declare took Hale from Nazi-occupied Paris to the ruins of post-war Berlin and the trackless wastes of the Arabian desert, culminating in a night of betrayal and mind-shattering terror on the glacial slopes of Mount Ararat.

Now, with the Cold War at its height, his superiors want him to return to the mountain and face the dark secret entombed within its icy summit. Hale has no choice but to comply, for Declare is the key to a conflict far deeper, far colder, than the Cold War itself.

'Tim Powers is a brilliant writer. Declare's occult subtext for the deeper Cold War is wonderfully original and brilliantly executed' - William Gibson

'Dazzling - a tour de force, a brillant blend of John Le Carre spy fiction with the otherworldly, packed with historical fact, dazzling flights of imagination, and wonderful suspense' - Dean Koontz

'Philip K. Dick felt that one day Tim Powers would be one of our greatest fantasy writers. Phil was right' - Roger Zelazny

'If you've ever woken half way through a fabulous dream and desperately wanted to know what would have happened next: relax. Those unfinished stories go to Tim Powers, and he's good enough to write them down for all of us' - Nick Harkaway

'A brilliant, strange crossbreed of the spy thriller and the supernatural' - China Mieville