Plot Summary

When one of Arséne Lupin's victims is found dead in a way that implicates the wily criminal, he insists on heading the police search for the real murderer.

The mystery involves finding a package of letters once written to Bismarck, locating a clock on which the number 813 has significance, as well as causing a reigning emperor to make several journeys incognito.

Murders by the dozens, suicide, and mild forms of torture are warp and woof of the plot.

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