How easy is it to create a cipher which is very hard to break?

[Aga Tentakulus]

Back to the mosaic case
The language used in this riddle is German. Encoded with Caesar, shift 3.
The original text can be found here:
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Someone who knows German will quickly discover that
there aren't many words in the dictionary. No trace of grammar. German is not always German.
It doesn't take much not to understand it.

This little attempt is only to show what I can expect behind the VM-glyphs.
I'm not sure, but I believe that this difference of the way of writing after 500 years to today can be transferred also to other languages. Italian, Spanish, French...etc.

Here I also set the link to Torsten's article, where the details are well described.
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Thanks to Rene for the link to the letters.
Interesting that the different German dialects reveal the region of origin together with the sender.
Makes it much easier

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