Fellwright is the strange, ambient energy that is present in areas near either starfall. It warps the knots and bodies of creatures born in the Glassed Lands or the Char. It of creates animals and people with extra or elongated limbs, bony protrusions, hair loss, extreme behavioral swings, and most generally increased body size. Giants and Koza are examples of creatures affected by the fellwright, generally referred to as “fellwrought” creatures. While in the Glassed Lands, enough time has passed that animals have normalized into true breeding forms, in the Char many creatures are prone to suffer from even more extreme effects of this warping energy, such as wildly asymmetrical limbs, complete and violent madness, and debilitating bony growths.
Some believe that fellwright, in combination with Tekne-fueled magebreeding, may have been used intentionally by the Nonmen to create some of their legendary creatures, most notably dragons. Energies resembling fellwright have been discovered in some stones deep under the earth, such as in the Delve.