July 10, 2025 8:32 PM (GMT+2) It appears all safes that are unlocked with a code have a date as their code. So far I’ve unlocked one of them, the Safe at Boudoir, by entering “1225” (25th December). It is then likely that the rest also follow the same format of MMDD.

July 16, 2025 11:10 PM (GMT+2) Actually, I’m almost sure that the Time lock safe is included. So I have unlocked two of the (presumably) seven safes.

July 24, 2025 1:07 AM (GMT+2) According to Herbert’s freezer letter, the dates to unlock the safes are not written anywhere in the estate. It’s also likely there are actually 8 safes, not 7.

August 16, 2025 5:36 PM (GMT+2) According to the memos in 13th letter from Randolph, the numbers 6, 7 and 9 do not appear on any (fixed) safe combination. The memo is some sort of turquoise though, a color which I’ve never seen before. So my assumption that it is true is somewhat baseless.

On separate note, I’ve been hinted by a friend that the safe codes can be inferred from elements in the room they reside in.