Moonvault

The Legend of the Moonvault

Among the Illuminated Kingdom's scattered superstitions, few are spoken of as cautiously as the Moonvault. Most dismiss it as little more than a story whispered among guards during sleepless watches. Many insist it was an ancient sanctuary hidden somewhere beneath the Kingdom long before Grenchester was founded. No official record in the Church acknowledges its existence, and when priests are publicly questioned about the Moonvault, they often refuse to answer.
That silence has only fed the legend.

Common Legend

The most common version of the tale describes a vast underground complex buried somewhere beneath the Kingdom, concealed behind layers of ancient stone carved with runes inlaid in silver. According to the stories, these markings serve two purposes: to prevent divination magic from locating the vault and to ensure that whatever rests inside can never escape.
Among the oldest versions of the legend, Herald Luna Silvermaul supposedly described the Moonvault as nothing more than a hidden armory maintained for times of catastrophe. A place where relics, forbidden tomes, and ancient records are preserved beneath the earth for use against the enemies of Luniwyn, the Silver Maiden. Some tales describe silver blades capable of wounding creatures beyond mortal understanding, while a handful of accounts speak of entire archives detailing forgotten encounters with horrors erased from official history.
Most people who speak of the Moonvault believe that is the end of the story. The darker versions of the legend tell something else entirely.

The Lunar Prison

According to hushed whispers quietly passed among senior members of the Midnight Eyrie, the Moonvault was never built simply to preserve relics or hidden knowledge. Those things exist there, but only as tools supporting its true purpose. The Moonvault is believed to be a prison.
Ancient Elvish followers of Luniwyn supposedly encountered beings that did not belong to the Realms of Remembrance or any known plane touched by mortal understanding. These entities are often described as things tied to the Black Sea of Nothingness. Otherworldly horrors that move through dreams, consume memory, distort thought, and unravel reality simply through their presence. Some accounts claim they cannot truly die. Only containment is possible.
According to the legends, the Midnight Eyrie constructed the Moonvault around these imprisoned horrors, layering it in silver wards and runic barriers meant to anchor reality itself.

Related Locations

• Southeastern Lyrathil

Related People

• Luniwyn, the Silver Maiden

Related Organizations

• Illuminated Church

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Theories and Speculation

Like most legends tied to the Midnight Eyrie, reliable information regarding the Moonvault is nearly impossible to verify. Stories surrounding the vault have changed across generations, shaped by frightened travelers, half-remembered records, death bed sermons, and deliberate misinformation spread by those seeking to bury the truth.
Much of what follows may be entirely false.

• Some believe the Moonvault predates the Illuminated Kingdom itself and was originally constructed by ancient Elvish followers of Luniwyn during the earliest wars against the Void.
• A persistent rumor claims the runes surrounding the vault must be renewed during every lunar eclipse or the barriers holding the prison together begin to weaken.
• Several texts reference silver weapons capable of permanently wounding creatures tied to The Null. Many scholars believe such relics are hidden within the Moonvault.
• Whisperkeepers allegedly undergo rituals that allow them to enter the Moonvault without losing their minds. No surviving account describes what those rituals entail.
• A fringe belief among Aves scholars insists the Moonvault is not beneath the Kingdom at all, but hidden somewhere between planes where ordinary mortals cannot perceive it.
• Several records within isolated Midnight Eyrie monasteries describe low knocking sounds beneath stone floors during eclipses. In nearly every case, the records end abruptly afterward.
• Certain members of the Lantern Priests quietly believe the Midnight Eyrie conceals knowledge that should have been destroyed centuries ago.
• One particularly dangerous theory claims the Moonvault does not imprison creatures from the Void, but pieces of the Void itself.
• Sailors in Dundragon sometimes tell stories of priests throwing chained objects into the sea during moonless nights, claiming the items were "meant for the vault below."
• One unsettling claim suggests the Moonvault contains not only prisoners, but survivors. Ancient entities that willingly contain something far worse within themselves.
• The oldest versions of the legend end with the same warning: if the silver runes ever fade completely, the Midnight Eyrie will not attempt to save the Kingdom. They will attempt to bury it.