Mordred Deschain

Mordred Deschain is a fictional character from Stephen King's Dark Tower series. He is the son of Roland and the Crimson King, carried to term by Susannah Dean and Mia. His character is probably inspired by the King Arthur character of the same name.

Mordred can appear as either a human child, or a gigantic spider, and grows incredibly fast.

He meets his end when Oy attacks him and Roland shoots him four times in the head, causing it to explode and the lifeless were-spider falls into the gunslinger's campfire.