enter image description here

This picture is from the 50 trillion dollars challenge from the free ebook "Muko and the Secret". This one is already solved by a reader.

  • $\begingroup$ Wait, is this part of an ongoing challenge? $\endgroup$
    – Duck
    Dec 16, 2018 at 20:09
  • 1
    $\begingroup$ The whole challenge is not yet solved, but like I have written below the picture: "This one is already solved by a reader" - it means that the message from this picture is already found. $\endgroup$
    – aivirai
    Dec 16, 2018 at 22:26

1 Answer 1


My final answer is

naturals class

I noticed that there are

smaller and bigger stones in the archway. Reading them clockwise I get –••––••–•–••–•–•••••

Then I tried to decipher that

as morse code. I found no hint how to split that up in letters, so I tried until I got a meaningful word: –• •– – ••– •–• •– •–•• ••• = naturals

I then noticed there is still more:

On the floor are also two lines that look like morse code: –•–••–•• and •–••••••.

I finally managed to decipher that.

It splits up as –•–• •–•• •– ••• ••• which reads as class

  • $\begingroup$ Definitely it - all the other ones have followed this pattern. $\endgroup$
    – user46002
    Dec 22, 2018 at 3:47
  • $\begingroup$ Currently only "morse-based" secret messages were found in a book (that is why all the pictures I have uploaded were following this pattern). As for the solution - it is only a part of the whole message. Still something is missing. $\endgroup$
    – aivirai
    Dec 22, 2018 at 18:52

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