Stumbled upon Cicada in January, during exam studies for Linear Algebra, so I could then not put some real effort or/and time exploring it.
Hera are though some first pictures and links of the online adventure.
If you open this jpg-file in a text-editor (such as Norepad++ for Windows) you will get surprised by the content of the last line.
Here is the story about current ( of year 2014) quest:
A magic square used:
Interpreted via the Vingenere square
was a book schiffer decoded on January 31 – 2014
It yielded this onion:
the last piece in the quest, so far …