Was watching a film on the work of Turing on Netflix to decode the ENIGMA machine in wwII.
They built the machine but didn't have enough time to decode the sequence as the codes were changed every day.
A key clue was during a meeting at a bar with some clerks from another department.
The clerk mentioned that the Germans always sent a weather forecast concluded with a Heil Hitler.
Bingo....the header of the morning message was "weather"...followed by a "heil hitler"
This clue enabled Turing and his team to decode the remaining message.
Brainstorming..... “watch the water” and other water images? Could there be some kind of imagery in Easter Eggs which might deliver the deeply buried messages?