Merlin was a legendary wizard that was the mentor of King Arthur as well as the adopted father of the dragon known as Derous who would join the paranormal organization known as the Shadow Guild in the modern era. The powerful wizard is depicted with many magical powers, including the power of shapeshifting and is well-known in mythology as a tutor and mentor to the legendary King Arthur, ultimately guiding him towards becoming the king of Camelot. While these general tales are well-known, Merlin’s initial appearances were only somewhat linked to Arthur. It took many decades of adaptations before Merlin became the wizard of Arthurian legend he is known as today.
Merlin was the illegitimate son of a monastic Royal Princess of Dyfed. The lady's father, however, King Meurig ap Maredydd ap Rhain, is not found in the traditional pedigrees of this kingdom and was probably a sub-King of the region bordering on Ceredigion. Merlin's father, it is said, was an angel who had visited the Royal nun and left her with child. Merlin's enemies claimed his father was really an incubus, an evil spirit that has intercourse with sleeping women. The evil child was supposed to provide a counterweight to the good influence of Jesus Christ on earth. Merlin, fortunately, was baptized early on in his life, an event which is said to have negated the evil in his nature, but left his powers intact. The original story was presumably invented to save his mother from the scandal which would have occurred had her liaison with one Morfyn Frych (the Freckled), a minor Prince of the House of Coel, been made public knowledge.
Before the sacrifice could take place, Merlin used his great visionary powers and attributed the structural problem to a subterranean pool in which lived a red and a white dragon. The meaning of this, according to Merlin, was that the red dragon represented the Britons, and the white dragon, the Saxons. The dragons fought, with the white dragon having the best of it, at first, but then the red dragon drove the white one back. The meaning was clear. Merlin prophesied that Vortigern would be slain and followed on the throne by Ambrosius Aurelianus, then Uther, then a greater leader, Arthur. It would fall to him to push the Saxons back.
After Arthur's birth, Merlin became the young boy's tutor, while he grew up with his foster-father, Sir Ector known as Cynyr Ceinfarfog (the Fair Bearded). In the defining moment of Arthur's career, Merlin arranged for the sword-in-the-stone contest by which the lad became king. Later, the magician met the mystic Lady of the Lake at the Fountain of Barenton and persuaded her to present the King with the magical sword, Excalibur. Merlin is said to be the creator of the Knights of the Round Table, and is closely involved in aiding and directing the events of the king and kingdom of Camelot.
He is pictured at the end of Arthur's life, accompanying the wounded Arthur to the Isle of Avalon for the healing of his wounds. Others tell how having fallen deeply in love with the Lady of the Lake, he agreed to teach her all his mystical powers. She became so powerful that her magical skills outshone even Merlin's. Determined not to be enslaved by him, she imprisoned the old man in a glass tower, a cave or similarly suitable prison.