While the "Paper" is a specific inventory item, players often research it alongside the due to lore speculation.
: The paper displays five random shapes (out of eight possible options) paired with Roman numerals I through V. Doors (Statue)
: Once collected, the paper dictates the order of the digits. For example, if the paper shows "I = Star" and the Star book contains the number "3", the first digit of the combination lock at Door 51 is 3. While the "Paper" is a specific inventory item,
An essential guide found on the Large Office Desk in Room 50, used to decipher the code for the Library lock. Doors (Statue)