ủa mà sao biết pass hay vậy em chơi hoài chẳng tìm thấy pass đâu cả mà chỗ này gần phá đảo chưa
Gần phá đảo rồi đấy.Mất tầm nửa giờ chơi nữa thôi (nếu nhanh) 
Pass lấy ở đâu thì chắc là phải hỏi Luthor thôi.
Tớ cũng từng bí vụ này và nhờ hướng dẫn từ nước ngoài:
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The Rotary Calendar Puzzle
==========================
This puzzle is already two-thirds solved. We have the day, the 12th, and
the month, June, but we don't have the year. The Grady family fell on
hard times after Helen was committed for attacking Travis. All Richard's
lamentations spring from that event. If you remember the patient memos
from the sanitarium, they're dated 1960 and 1961.
Trying both years and figuring out which one is right is easy. However,
if you want definite proof that the answer is 1961, check Travis' lucky
quarter. It has the number 61 etched into it and is a keepsake he's had
from when his parents died. It's not clear when Helen died, and we don't
know what Richard did to himself (yet), but it's clear that both his
parents "died" in some form or another in the year 1961.
The full date on the rotary calendar is 06/12/1961. A small depression
opens. The wedding ring fits there nicely. This reveals the ROOM 500
KEY behind you.