In the far future, when the barriers of Time are barriers no longer, human 'monitors' exist to preserve the integrity of past events. A woman of uncommon strength and character, Alma Lewin was recruited for this purpose by the Moiety - the guardians of the historical continuum and intelligent life. In the classroom of the ages Alma learned well from her mentor, Monitor Gaspar James, that human history is an eternal string of birth and death - a wheel that must be kept turning at all costs, in order to keep what is to come uncompromised and uncorrupted. But Alma Lewin has gone renegade, inflamed by the wholesale brutality she was being asked to tacitly support. And she has vanished somewhere into the most violent years of the mid-twentieth century, into the most terrible place ever conceived by Man - Auschwitz. Now it is Gaspar James's responsibility to pursue his former protegee across the ages and into the worst hell on Earth. A man tormented by what he has witnessed over time - but sworn by sacred oath to let it be - only he can truly appreciate the depth of Alma's radical compassion... and the dangers inherent in her fervent belief that a future eternally tainted by genocide must be modified.