The devastation of the Second World War continues. In a castle in Wales a crippled fighter pilot struggles to regain his strength. And to preserve his sanity. Toby Jugg's courage in the air has won him a D.F.C. But now he faces the most terrifying challenge of his life. For in the quiet corridors of Llanferdrack House a ghastly conspiracy is moving towards its climax. A conspiracy planned and executed by an enemy as old as Chaos itself...