Presumably spotted like the typical 'Pard and malnutritioned like the typical slave. It is sad he has been whipped and branded. Ny'ool presumably has the slave mark etched into his face.
Ny'ool is a very subdued 'Pard, especially after he is taken in and broken after his family is presumably killed. However, he still has enough defiance in him to fight his conditioned subservience and assist the Red Queen when she comes to overthrow his masters.
In The Forges of DawnEdit
Ny'ool is one of many slaves to be handed torches with which to fight the Guardians with. However, he decides to use his torch to fool the Overseers into leaving their slave charges unattended so that he can free his fellow slaves. Once they are free, Ny'ool and the newly freed slaves help the Red Queen Uru do battle, striking out fiercely with their chains.