Vaults of Forbidden Knowledge are hidden doors in Hell Is Us that lead to valuable rewards, including defensive gear, weapons, lore items, and more. Not only are these doors very well hidden, but they ...

In order to unlock Vaults of Forbidden Knowledge, you'll need to know what the codes are (unless you try to brute force them, but where's the fun in that?). The only person in Hadea who can help you ...

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, ...