— Mordred Deschain
He had two forms, child, and spider-like monstrosity (making him a Were-Spider). He was born with an extreme hunger as a result of his accelerated growth. His spider form consumed energy much quicker than the child form, but was also much more dangerous.
Role in the Dark Tower SeriesEditHe was conceived with help from the Speaking Demon. It took Roland's sperm in The Gunslinger and implanted it in Susannah in The Waste Lands. The baby was transferred ("faxed") to Mia using one of the machines in the Dogan.
After Susannah and Mia were brought to the Fedic Dogan, Mia delivered Mordred. Mordred's first act was to eat his mother. During Susannah's escape, she shot one of his spider legs off. He sought refuge within the tunnels and was brought nourishment by Nigel.
Walter O'Dim attempted to manipulate him by getting a hold of his birthmarked spider leg to open the door of the Dark Tower. When Mordred met Walter, the young spider boy sensed his intentions and proceeded to kill him in a rather brutal manner.
He was slain by Roland, with the help of Oy, who gave his life to warn and protect Roland.
Mordred in Arthurian LegendEdit
Mordred Deschain is based upon the Arthurian Legend of Mordred le Fay. Mordred Le Fay was the illegitimate son of the famous King Arthur and Arthur's Half-sister Morgan Le Fay. Morgan would teach Mordred to hate his father. Mordred Le Fay is known as the traitor, who at the Battle of Camlann, fought Arthur and mortally wounded him. In the process, Mordred himself was killed.