The Mystery of the Nautilus Hints

How do I open the locked door at the end of the corridor?

  • 1 of 3: The door is locked using a 3-digit code.
  • 2 of 3: Don't attempt to guess the code, because the lock disables itself after 3 unsuccessful attempts.
  • 3 of 3: Don't try to find a code at this point; there isn't one.