As a young boy, Merlin is sought by King Vortigern, who needs a child’s blood to stabilize a collapsing tower. Merlin’s supernatural insight reveals that the tower’s instability is caused by two fighting dragons beneath it (red and white, symbolizing the Saxons and Britons). His prophecy impresses Vortigern, establishing his reputation as a seer.
The white and red dragon sleeping under the tower of King Vortigern released by the young Merlin. Symbolic of the internal opposing forces that do battle but must be defeated and harmonized.
That which lies underneath foundation of the castle or tower
