Spiris are a people of average height, 170 cm (5'5), with a slim, but not skinny, build. Spiri have sharp features, like their ears that are elegant and pointed, their eyes that taper to sharp ends, their high cheeks and foreheads, and angular jaws. The Spiri brow ridges are, however, a very characteristic mark. The brow ridges are long and sharp, but not pointed. Just underneath the brow ridges and above the eyes Spiris have a row of retractable barbed needles (ten needles under each brow). Female Spiris also have 10 razor sharp, non-retractable needles in a row up each arm. These needles are different in that they are flat and double edged, used for slicing, not piercing.

The most noticeable and characteristic feature of the Spiri lies in their skin. Spiri are completely transparent, except for the shimmering outline that surrounds them. The transparent property lies only in a Spiri's skin, remove it and all that lies beneath is strongly visible. The ability of the skin does not stop there, anything that the individual touches that is inanimate and small also becomes transparent. This ability cannot be deactivated, as it is a physical quality of the skin. Another characteristic feature of the Spiri is that their pupils are slitted, similar to a cat. The eye color can be anything, although blue and brown eyes are the most common. Spiri pupils are also slitted horizontally, because it allows Spiri to see each other, through the transparentness of the skin.

Spiri have an ancestral name that was forgotten centuries ago. Spiri got the name "Spiri" because of their resemblance to spirits, and that at the time they got this name the majority of them lived in Spirit Woods. For many, Spirit Woods was a woodland of evil and of the supernatural, which isn't far from the truth. Spiris live in communities and towns in typical forest area Root Cultural dwellings, underground homes, or dark damp caves, in the high mountains or southern forest regions. Spiri heritage is matrilineal, so that male children are still very desirable, but female children are also essential to carry on the family line. Spiris have a difficult place in "civilized" society's' towns and cities. Spiris especially have a hard time finding any type of job or permanent residence out of their own society because of superstitions and racial prejudices. Spiris are never hired in any towns that value honesty, simply because people don't trust what they cannot see. Therefore, in superstitious or prejudiced societies, it is common to find that most Spiris have turned to Roguing.

This has led to the establishment of a secret, and very powerful organization called the Rogues Gallery. The Rogues Gallery is comprised of mainly Spiris, but many other members are of different races. Anyone can join, provided that they are proficient at certain skills. The Rogues Gallery practices, thieving, begging, smuggling, drug dealing, assassinations, gladiatorial sports, etceteras, the list is endless. The Rogues Gallery is the largest network in Khardan that has its center in Jah-Re-Bah, and ties to every town and city.

The common Spiri language is called Spiritic. Spiritic is a soft language that has many sounds closely resembling those of forest animals. The Spiris, have another language, a silent language consisting of small hardly noticeable signs made with the hands and arms. Only Spiris and those persons who have lived or affiliate closely and frequently may ever learn this language. Most of the Spiri race is a part of the Otapi'sin culture of the forests, some Spiri shares the mountains with the Phantasmuses. Spiris commonly celebrate the equinoxes and the solstices as their regular holidays. At the end of each of these festivals Spiris take part in a ritual that releases magike from their bodies into the trees and forests. This ritual utilizes what the Spiris call coupling magike. Only adult Spiri may take part, for obvious reasons. Each Spiri takes the partner of his choice, regardless of ties or marriage obligations, for one night.

To become an adult Spiri men and women must be proficient in all of their sacred weapons, (daggers, dirks, darts, katana swords, and long bows). Males must also pass tests of strength, courage, dexterity, hunting, and guile. Females must pass tests of courage, dexterity, gathering, guile and charm.