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