Crystal Clear Clairvoyant

The Crystal Cave, written by Mary Stewart in 1970, is the inaugural novel in a quintet exploring the Arthurian legend from Merlin's perspective. The narrative unfolds through Merlin's own voice, detailing his journey from childhood in post-Roman Britain to young adulthood. He grapples with his mysterious parentage and nascent clairvoyant abilities, which lead to him being ostracized. Under the tutelage of a hermit named Galapas, Merlin learns to harness his psychic gifts and earthly knowledge. His path eventually leads him to Ambrosius Aurelianus, whose campaign to unite Britain Merlin aids. The story reveals Merlin's true parentage and his entanglement with Vortigern's attempts to build a fortress, culminating in his brief role as a prophet. The novel concludes with Merlin's involvement in events leading to the birth of King Arthur.

The novel centers on Myrddin Emrys, known as Merlin, tracing his life from age six to young manhood in a Britain recently abandoned by the Romans and fragmented into warring kingdoms. As the illegitimate son of a Welsh princess, his parentage is unknown, leading to him being labeled as a 'son of a devil' and 'bastard child.' Merlin experiences recurring clairvoyant visions, which are further developed through his education by the hermit Galapas. Galapas teaches him to utilize both his psychic potential and practical skills. This period of learning and self-discovery is crucial to Merlin's eventual role in shaping the destiny of Britain.

A significant element in the narrative is the discovery of a hidden crystal cave. Located near Maridunum, this spherical chamber lined with clear, glass-like crystals is found by young Merlin. The cave is situated on a hill locally believed to be inhabited by a deity named Myrddin, associated with air and heights, imbuing the location with magical properties. Merlin uses this cave as a sanctuary for introspection and receiving prophecies, highlighting its role as a source of his mystical insights and a place of power integral to his development.

Merlin becomes deeply involved in the political landscape of Britain. He aids Ambrosius Aurelianus in his efforts to unify the country and defeat Saxon invaders. Later, after Ambrosius's death, Merlin assists Uther Pendragon, Ambrosius's brother, in his ascension to the throne. This includes facilitating Uther's union with Ygraine, the Duchess of Cornwall, a union that results in the birth of King Arthur, thus setting the stage for the legendary reign of Arthur and Merlin's continued influence.

“a globe, a round chamber floored, roofed, lined with crystals. They were fine as glass, and smooth as glass, but clearer than any glass I had ever seen, brilliant as diamonds.”