: A torn calendar page on the wall with the dates October 12 and December 5 circled.
What (safe, phone, door) are you trying to unlock? agent 17 puzzle
If you want, I can:
Hint 1: Use given falsehoods to eliminate options. Hint 2: Sunrise in a Scandinavian capital narrows to Oslo, Stockholm, Copenhagen. : A torn calendar page on the wall
Ciphertext: Yvccf Shift backward by 17: H → A? Wait, let's do: Y (25th letter) - 17 = 8 = H. But that doesn't form a word. Actually, shift forward by 9: Y+9 = H? No – careful: The common trick is ROT-17 , which is identical to ROT-9 in reverse. Test a word: "HELLO" with ROT-17: H(8)+17=25=Y, E(5)+17=22=V, L(12)+17=29 mod26=3=C, L→C, O(15)+17=32 mod26=6=F → "YVCCF". So if you see "YVCCF", ROT-17 back to "HELLO". Hint 2: Sunrise in a Scandinavian capital narrows