Where are the Hell Is Us Vaults of Forbidden Knowledge? There are more mysteries than you can shake a stick at in Hell Is Us—everyone needs something, there is seldom a door that isn’t already locked, and occasionally, you’ll get a lead on a special vault that contains, well, forbidden knowledge.

Knowledge is power in Hell Is Us, but you’re going to have to work for it. For instance, knowing the Vitalis house code gives you access to the blacksmith, allowing you to upgrade your weapons. Vaults of Forbidden Knowledge are another source of knowledge and power, and we have all the information you need here if you want to go hunting.

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