The Dark Vault is the main library of the Shadow Academy, and houses thousands of years of history, philosophy, lore, and tactical manuals. Nearly all of the Shadow Academy courses are derived from information found in the library, and often students will come here to further their studies. Originally built on Lyspair, the Dark Vault was made of five levels, each with a different security access requirement. Students could only access the first level, while the Headmaster could go as far as level four. After the Evacuation of Lyspair, most of the Dark Vault's information was made digital and moved onboard the Arcanum, though the same security exists as it did on Lyspair. When the Dark Brotherhood returned to the Antei System, information was restored to the original library, as well as increased security measures in the case of future attack. To a certain extent, in the case of attack, the Dark Vault is one of the safest places in the Shadow Academy.