A young man receives a series of letters engraved with the symbol of a snake eating its own tail. Inside them are an impossible photograph, a key and the name of a street. To reach the end of the mystery, he will first have to discover its origin.
2010
1994
2007
1911
1969
2018
2020
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1910
2014
1920
2019
1956
1978
1947
2005
