In 1945, the Archangels materialised over the battlefields of Europe, ushering in a new Cold War. Fifty years later, they are being killed off... one by one. But who - or what - can kill an angel? Killarney is a shadow executive for the Bureau, British Intelligence's most secret organisation: so secret it doesn't even officially exist. She is the best - and she always works alone. Sent on a desperate mission to locate a missing cryptographer who may prove the key to the murders, Killarney finds herself running for her life, from London to Paris to Moscow, leading to a confrontation with a very human evil in the frozen wastelands of Novosibirsk. Plagued by dreams of a different world, and haunted by a swastika adorned with angel wings, it ould take all of Killarney's resources to survive, when heaven itself may be threatened, and God herself may be walking the earth...