From the bestselling author of Headlong "and " Spies " "an unconditional triumph" (" The Washington Post Book World)" For fifteen years ever since the taciturn civil servant Summerchild fell to his death from a window in the Admiralty there have been rumors. So Brian Jessel a young member of the Cabinet Office is diverted from his routine work & asked to prepare an internal report. Slowly from the archives in the Cabinet Office Registry Jessel begins to reconstruct Summerchilds last months. It begins to emerge that at a time when America had just put men on the moon the British were involved in an even bolder project & that Summerchild was investigating a phenomenon as common as sunlight but as powerful & dangerous as any of the forces that modern science has known. The secret world into which Brian Jessel stumbles turns out to be even more extraordinary than his department had feared."