The Empyrium is the home realm of the Arkn. It is divided into four regions: Distalia, Mistria, Shallus, and Destrus. Each region is ruled by a Thani, who are, in turn, ruled by the Eldric. The one exception is Avantas'tol, a metropolis which exists as an independent kingdom within the realm.
An independent monarchy located on the forested, mountainous border between Distalia and Mistria. Known as The City of Glass and Stone and the Traveller's Window, it has been allowed to remain independent due to negotiations between the Eldrici and the ancient rulers of the city. It is known for its lavish and beautiful architecture, and is a hub of commerce and trade, as well as one of the biggest den of underground gambling in all of the Empyrium.
The patriarch of the Irinith family and former ruler of Avantas'tol. He is the father of Tabbris, Calcharan, and Ryu'lough.
- Action Dad: Is implied to have been one.
- Abusive Parents: He was emotionally and physically abusive to his three sons in their childhood, and remains verbally and emotionally abusive to Tabbris when he's an adult.
- Domestic Abuse: In addition to abusing his three sons, he's confirmed to have mistreated his wife, Iaealis, when she was alive. (In fact, it's strongly suspected that he was responsible for her death.)
Tabbris Xanthris Irinith
The former Indazari of Avantas'tol. The oldest (and only surviving) son of Amartas Irinith, he ruled the kingdom for a time before stepping down. The father of Sevar'khai Irinith and Franz Faust.
- Action Dad: He's no stranger to battle, before and after producing two sons. He even personally trains them in the art of combat.
- Affectionate Nickname: Faust usually calls him "ire-an Elbaset" ("My Father").
- The Good King: It's hinted that he was a good ruler, and was much beloved by his subjects.
- Parental Favoritism: Downplayed: while he favors Franz slightly over Sevar'khai, this seems to be more out of protective instinct (due to Franz being half-human), and he does make the effort to train both of his sons.
- When You Coming Home, Dad?: Tabbris's work unfortunately kept him very busy, and caused him to miss out on much of his sons' lives. Despite this, however, he is a caring man, and tries to be a good father.
Indazari Sevar'khai Elistros Irinith
The oldest son of Tabbris Irinith and older half-brother of Franz Faust, Sevar'khai is the aggressive and egotistical ruler of Avantas'tol.
- Big Brother Bully: According to Faust, Sevar'khai is this.
- Sketchy Successor: It's hinted that he's not nearly as beloved (and adept) a ruler as his father was.
- The Wrongful Heir to the Throne: The only thing we know for certain about Sevar'khai that isn't from Faust's perspective. He's the only full-blooded and legitimate son that Tabbris Irinith birthed, but he is apparently not ruling very well.
Franz Irinith Faust
Known as the Scholar of Ersis and the Archivist, Faust is an Arkn-Human hybrid and the youngest child of Tabbris Irinith. He is a scholar of Arkn and Dekn culture. See here for tropes about him.
The former King of Avantas'tol. He was known for being a fair ruler, and tried to bring peace and prosperity to his people in his time. Gav'reel carried a weapon of legendary power: a staff known as The Thorn, which vanished after his death.
- Death by Origin Story: He is introduced via the legend of his demise: he was murdered by Miriam Mag'dal, who was wielding Reignbreaker (the former sword of Ellpagg).
- Technical Pacifist: Gavreel refused to kill anyone unless it was absolutely necessary.
- The Good King: He was a good and fair ruler, and genuinely tried to better the lot of his people during his reign.
- Magic Staff: The Thorn, a weapon of immense magical power rumored said to be carved from the wood of the Tree of Life of the Old World. It vanished after his death, and eventually wound up in the hands of his ancestor, Franz Faust. (It is hinted that The Thorn can only be summoned by those who are truly worthy.)
- Staff of Authority: Surprisingly Averted; the Thorn was not the sign of his rule, but a symbol of his magical power (and a weapon).
- Background Magic Field: The region is protected by a small scale version of this: it is walled off by giant Ethric crystals, which emit an energy field that disables any Dekn technology within its borders.
- Desert Bandits: The Scarred Marauders, an enormous group of Dekn bandits living under the wastes of Destrus.
- Desert Punk: Destrus has shades of this. The region was reduced to a wasteland by Dekn warfare, it's pockmarked with ruins, and it's a haven for deadly wild animals — and even an deadlier company of bandits (who, due to the routine ethric "EMP bursts" that deactivate any modern technology, must rely on the most primitive weapons).
- EMP: The entire region is blanketed by a magic version of this (generated by a border of massive ethric crystals), which knocks out any Dekn tech that enters (or is left within) its borders. (The Eldrici's castle is protected, however: it's built of metal alloys, which basically turn it into a giant Faraday cage.)
The feared ruler of Destrus and (allegedly) the leader of the secret Army of Nothing. He dwells in Castle Diamus on the border of Destrus.
- Action Dad: He is the father of Iscari, as well as the leader of the Army of Nothing.
- A Father to His Men: Averted; he is said to have no friendly or sentimental attachments to anyone — least of all his troops.
- Anti-Hero: Is seen as such by many of his peers.
- The Dreaded: So deadly is the Eldrici that his name is feared by Arkn and Dekn alike.
- Love Is a Weakness: According to legend, "The Eldrici was cold hearted, and loved nobody. No friends or family clouded his thoughts, he was free of all that." (However, given that he adopted a son, the legends may not be entirely true.)
- The Spartan Way: He puts his recruits (often orphans of war) through brutal tests; those who fail are killed before him.
- Arboreal Abode: Many of the buildings in Vinaya (the hold city of Distaila) are actually built into the massive aela.
- Arcadia: Is implied to be one. It's the most heavily forested, and rural, region of the Empyrium.
- Tree Top Town: The towns and cities are built high up in the trees (aela, in this case) — literally, in some cases.
A member of the Ethric Guild. While attempting to infiltrate the Society of the Purple Rose to check up on Shannah Averil, she ended up being brainwashed by Marchosias Aversen and was initiated into the cult. She shares a rare psychic bond with her twin brother, Laen. For tropes related to her, see her folder under The Society of the Purple Rose.
The brother of Laurien, who works for the Looker Division of SEEKER.
- Jerk with a Heart of Gold: He comes across as reserved and often gruff in person, and sometimes on his blog. (Laurien jokes that it's because he's bitter about his "stupid name".) However, he cares deeply about his sister, and (despite not agreeing with all of her life choices) just wants to see her happy and safe
- Red Oni, Blue Oni: The blue his sister's red.
- Art Nouveau: Windecayn's aesthetic (and that of the region in general) is said to be a mixture of this and Art Deco.
- The Edwardian Era: The fashions and technology of Windecayn seem to be influenced by the human time period.
- SteamPunk: Windecayn, the hold city of the region, was built within a dormant volcano, and powers most of its technology with the Ethric fluid (and steam) from said volcano. The region's hold city is described as "resembl[ing] Edwardian England, with a smattering of Art Deco", with the colors copper and gold being prominent throughout the city.
- Ocean Punk: The region has shades of this (though the "ocean" in question technically isn't full of water, but a dark brown, thick substance called aebys).
- Turtle Island: The Shallus contains intelligent, floating, turtle-like creatures called Banka that are so slow-moving that vegetation often grows on their backs — and so massive that they can be mistaken for islands.
- Underwater City: The royal castle is built beneath the waves.