They had fought a life-crushing 21st century dictatorship, and now they were witness to the dawn of life itself. Bitter witness. For they were political prisoners, exiled forever behind a billion year-high wall of Time-sent "one way" to the grey slab shorelines of a barren Earth before life had begun its long climb from the sea to the stars. A lifeless world was their prison, and there was no way back.
And then one day the stranger came...