First published May 2014 as Bretonisches Gold by Verlag Kiepenheuer & Witsch, Cologne, Germany.
Summary
The old salt farmers have always said that the violet scent of the Fleur de Sel at harvest time on the salt marshes of the Guérande Peninsula has been known to cause hallucinations. Commissaire Dupin also starts to believe this when he's attacked out of the blue in the salt works.