A Peri is an endangered Fae species of ancient Persian origin.
Considered exquisite little creatures, Peri are normally harmless and defenseless. However, when they swarm they behave more like killer bees.
In Persian mythology, peris are descended from fallen angels who have been denied paradise until they have done penance. In earlier sources they are described as agents of evil; later, they are benevolent. They are exquisite, winged, fairy-like creatures ranking between angels and evil spirits. They sometimes visit the realm of mortals.