Every island has a geography. Avalon's geography is not purely physical — it is psychological, mythological, and in some sense moral. The four Realms of Avalon are not simply different zones on a map. They are different ways of understanding the world, different filters through which the island's history is refracted. Each Realm emerged from the shattering of the original unified island, taking with it one aspect of what Avalon once was.
This article is the lore behind the lore: how the four Realms came to exist, what they represent, and why the world is structured the way it is. There will be spoilers for the early game.
Before the Shattering
The oldest texts in Avalon's Codex — the fragments of the Book of Foundations that survive in the Ancient Library — describe the island before the four Realms existed as a single coherent landscape. Old Avalon was governed by the High Council of the Four Houses: House Arcanum, which held magical and scholarly authority; House Umbra, which held political and military power; House Cognita, which held psychological and philosophical wisdom; and House Anima, which held dominion over desire, pleasure, and the deeper impulses of the self.
For centuries, the four Houses maintained a balance. Their domains overlapped and influenced each other but no single House could act without the others' consent. The island was whole because no single principle was permitted to dominate.
The Forgetting changed this. When the magical plague began consuming memory — erasing not just individual recollections but the shared institutional memory that held the Council together — the four Houses retreated into their own territories. Without a shared frame of reference, cooperation became impossible. The island literally fractured along the fault lines of its political geography.
What remained were four Realms, each a distillation of its founding House — and each, in isolation, a distortion of what it had once been.
The Mystical Sanctum
The Sanctum is what remains of House Arcanum's territory: the island's oldest library, its alchemical laboratories, the Observatory from which the stars of Avalon's particular sky have been mapped for a thousand years. It is the most architecturally intact of the four Realms, because the Arcanists understood better than anyone what they stood to lose and worked hardest to preserve it.
The Sanctum's defining characteristic is the primacy of knowledge. Here, what you know determines your status. Its NPCs are scholars, archivists, astronomers, and practitioners of the pre-Forgetting magic — an approach to power based on deep study rather than innate ability. The Sanctum's faction, the Order of the Veil, believes the Forgetting can be reversed through scholarship: find the original incantation that created it and there will be an incantation that undoes it.
The shadow side of this: the Sanctum hoards knowledge. What it knows, it does not share freely. Information is currency here, and the Order of the Veil has information it has not disclosed to the other Realms — information that may be material to the game's central mystery. The Arcanist who arrives in the Sanctum as their starting Realm will feel at home and will, eventually, feel the weight of what home demands of them.
Shadows Hollow
Where the Sanctum is preserved, Shadows Hollow is corroded. House Umbra's political machinery — the courts, the intelligence networks, the system of patronage and obligation that once held the island's power structure together — has continued to operate after the Shattering, but without any of the checks that the other Houses once provided. What remains is a political culture of pure instrumentalism: everything is permitted if it serves the faction's interests, and the faction's interests are whatever those currently in power say they are.
Shadows Hollow is the most dangerous Realm in the early game and the most tonally complex. Its surface is beautiful — the architecture is the most ornate on the island, the food is the finest, the entertainment is sophisticated. But the court that governs it is built on informants. Every conversation here is potentially being reported. The NPCs of Shadows Hollow are not simply enemies and allies — they are entities with their own agendas, obligations, and survival calculations, and which face they show you depends on what they believe you are worth.
The Shadowblade finds their starting ground here, in the company of people who understand exactly what they are and have decided they are useful. The arc of the Hollow is about what happens when usefulness expires.
The Minds' Eye
House Cognita's territory was always the most inward-looking of the four. Where Arcanum looked outward to the stars and Umbra looked outward to the political landscape, Cognita looked inward — to the structure of mind, the nature of perception, the question of whether the world we experience is the world as it is or the world as we have been conditioned to receive it.
The Minds' Eye is a Realm of labyrinths. The architecture is genuinely disorienting: corridors that seem to loop, rooms whose dimensions do not correspond to their exterior, a geography that appears to change depending on the mental state of the person navigating it. This is not entirely metaphorical. House Cognita's practitioners were the island's foremost experts in psychological influence, and they built their Realm to resist outsiders and challenge insiders.
The Forgetting hit the Minds' Eye in a particular and terrible way. A culture that studies perception and memory with such intensity, confronted with a plague that erases memory — the philosophical crisis this created is still unresolved. The Sentinel, whose starting Realm this is, arrives into a community that is both the best-equipped on the island to understand what the Forgetting is and the most psychologically devastated by its implications.
The Minds' Eye is the Realm where the question "what is real" is not rhetorical. Enemies here attack through illusion and cognitive displacement rather than direct physical violence. The combat in this Realm is built around mental resistance — Willpower as a stat becomes critical in ways it is not elsewhere.
Garden of Desires
House Anima's territory is the most misunderstood of the four Realms by players who have not yet entered it. Its name — and the associations that come with it — suggest something lighter, more hedonistic, less consequential than the other three. This is exactly the impression the Garden cultivates. It is also precisely wrong.
The Garden of Desires operates on the principle that what a person truly desires is the most accurate map of who they actually are. Strip away the social performances, the survival calculations, the accommodations made to other people's expectations, and what remains — the deep want, the ache that does not resolve — that is the self. House Anima's practitioners were, in the old world, the island's priests of authenticity. They were also, in less charitable readings, its most sophisticated manipulators.
The Garden is the most visually lush of the Realms, deliberately so. It presents itself as a place of reward and welcome. The Veilweaver begins their journey here, surrounded by a community that is extraordinarily good at making you feel seen — because they are. The Garden's NPCs perceive desire with an accuracy that can feel invasive. Its enemies are creatures born from repressed or distorted want: the Yearning Shade, the Hollow Beloved, the Mirror-Eater.
The Garden's central question — the one that the Veilweaver's arc is built around, but that any player who spends time here will encounter — is whether a desire that has been named and witnessed is liberated or captured. The Garden offers to show you yourself. What it charges for that service is what the entire arc of this Realm turns on.
The Architecture of the World
The four Realms are not equal in size, in difficulty, or in narrative weight. They were designed to be played in a particular order — though the game does not enforce this — and the lore of each Realm answers questions raised by the previous one while opening new ones.
More importantly: the four Realms need each other. The Shattering that separated them was not just a political catastrophe. It was a cognitive one. A world divided into knowledge, power, perception, and desire — with each operating in isolation — is a world that has lost its ability to understand itself whole. The mystery at the heart of Avalon is not the Forgetting. The Forgetting is a symptom. The mystery is why the island shattered in the first place — and whether it was meant to.
That answer is in the Sanctum's sealed archives. And in Shadows Hollow's oldest political secrets. And in the Minds' Eye's philosophical crisis. And in the Garden of Desires' understanding of what was truly wanted, by the people who made this island what it is.
The next article in this series takes up the entity at the centre of that mystery: the Forgotten Oracle, the final boss of Phase 1, and the figure whose motivations are not what they first appear to be.