Carfal is a child of the Red King. He fell under Harken's control, and became one of the 5 wicked children, like Olga, Wyborn, Borlath, and Lilith. He was the Red King's fourth child and third son. Carfal was a changer, and though he fell to wickedness he later changed and fled the Red Castle. He made his way to the land of the Merromals and their met his Merromal wife. Carfal is the ancestor to Asa Pike.
Note: In Charlie Bone and the Wilderness Wolf, Carfal's name is said to be Cafall.