Used book – La vengeance volée, Irène Chauvy

Stolen Revenge Napoleon III's entourage is under threat! Two servants have just been savagely murdered, one at the Tuileries Palace, the other at the Emperor's cousin's home. The dashing Hadrien Allonfleur, captain in the Hundred-Guards squadron, is in charge of imperial security. Accompanied by a retired inspector, grumpy but perceptive, he must unmask the culprit as quickly as possible... while foiling the traps of a formidable rival.

"We have all the ingredients of a good historical detective novel. The balance between narration and dialogue, a convincing description of the atmosphere of the Second Empire, and above all, truly endearing characters who stay in your mind long after you've finished the book." Jean-François Parot