Bloodeaters (Lueeshareteers) were once known as the People of Eon. They became Bloodeaters when they were forced to find a replacement for Eeshar, the fruit that supplied their bodies with haemoglobin. The Bloodeaters are divided into three clans: the Lost, the Damned, and the Fallen.

The Fallen (Naqatatu) clan is now extinct, with Angelica, Abbas's fourth daughter, as the sole survivor. The Fallen were energy beings with feathered wings and light yellow colouring that, when angered or attacking, transformed into black birds.

The Damned (Ezerutu) appear human, except for their older (principal) members—Abbas and the Elders—who have greyish skin and no hair, and Prva (Abbas's first daughter), who has greyish skin and white hair. The clan consists of Elders, Belini (Masters), and Aradmas (Servants). They cannot turn humans into Bloodeaters. However, they can become the masters of the Lost's Aradmas by infusing their blood into the Aradma's body.

The Lost (Halqutu) are human-like with a strict hierarchy. The clan is composed of more than ten Families, each led by purebreds known as Gelbeliya (Great Lords). Those whom the Gelbeliya have turned through the Tying ceremony are called Beliya (Lords); they possess the same strength as their masters and are the only ones capable of turning humans into Bloodeaters. Ishaaases (Masters) are those turned by purebreds without the Tying ceremony and with a weaker infusion of the purebreds' blood. Aradmas (Servants) are turned by Beliya and are the weakest of the Bloodeaters.

Deadeaters (Akilueteer, vampires) were originally by-products of Abbas's feeding—humans infected by a drop of Abbas's blood or saliva while he fed on them. They die and then rise as the living dead, animals who can't control their thirst and become violent at the sight or smell of blood. They possess all the weaknesses of traditional vampires but lack their strength. Before Abbas's head was severed, he was the only one who could control them. They can turn humans into Deadeaters by draining all their blood and then replacing it with a drop of their own. The more of the Deadeater's blood the victim receives, the saner they remain.

When the Deadeaters multiply too much, the wildest and most insane are hunted and killed by the Numuns and the Dumes, members of the Damned clan.

The Numuns are Angelica's creations, based on Prva's genetic code, which is why they all have white hair.

The Dumes—Uriel, Haniel, and Muriel—are the result of Angelica's experiment on Damon Blackdart's unborn child.

Aarsa tiyaat ("remain in waiting") refers to the rare cases where a victim remains in a twilight state between human and Bloodeater.

Mamaels is the name Bloodeaters use for humans.

Mesedi is the term for officials (akin to human police) in the Lost clan.

Primary refers to the technology left behind by the People of Eon.

Sarniikzis ("make restitution") are steel crates that most Bloodeaters use as humans use beds. Sarniikzis have healing effects and reduce the time needed for rest.