Daze Puzzle provides a complete walkthrough for "Brain Test Level 272: We must open this vault.".
Switch Game Version
Question
We must open this vault.
Hint 1
There must be a clue on a paper somewhere.
Images
Answer
Move the books away to see the piece of paper under them. If you look at it carefully you can see the password. You have to activate numbers 12358.
Game Versions
Play Brain Test 1
