Thus are called those reapers, deities of death, that wander the darkness devouring the souls of men. Some are known for the strength of their blades, others for the strength of their magicks. They are feared as demons for their cruelty, and indeed the sight of them devouring a man's soul is said to be worse than a lifetime of torture, yet, oddly, the expressions left upon the faces of those whose souls have been devoured are not masks of pain, but of beatific calm. This has led some to speculate that it is not, perhaps, the Inferno to which they bear their victims, but Paradise.
In the Subterra of Pharos at Ridorana, Nightwalkers do not spawn easily. One will need to spend at least seven minutes in the Subterra and Nightwalker will appear in any of the rooms of the Penumbra, Umbra, and Abyssal near the Pedestal of Night.