'"A multitude of possible worlds" ... Do these words indicate the truth behind the mysterious Wall that is stretched across the valley? The Wall that glows with such a supernal splendour above the shallow lake beneath it, and yet appears as insubstantial as the dew?
'In a time and place that seem remotely familiar, two Scientists, Master Asquith and his pupil, sixteen-year-old Conrad le Jeune, ride from the College at Abingdon to carry out their investigation beneath the very eyes of the Church: for the valley of the Wall is close by the Monastery of St Germaine. And in their quest for the truth they encounter a knight of the realm, Ramon de Vargas and his daughter, Donella - an encounter that is to involve the young student in a desperate venture beyond anything he had imagined, leading him at last to the terrifying Fortress at the end of time.
'Is the Wall in truth the 'miracle' the Abbot of St Germaine declares it to be, a vision of supernatural beauty; or is it a creation of the Devil, a scabrous, weeping wound suspended in the sky? It is left to Conrad to discover the truth, as he treads at last a desolate plain haunted by half-human creatures.'
Source: Publisher's blurb.