Teresa: You're welcome.
The Werewolf of Paris... It has been more than 25 years since I last read that one, but I'd hesitate to say it does for werewolves what Dracula did for vampires; nor do I think Endore intended it to be anything like that. It uses some genuine lore about real lycanthropy cases (as well as some fictional aspects), and combines it with the violence of the Paris communes at the period, as an examination of the beast in man; the tendency to revert to a violent animal state so easily, and the corruption which spreads with it.
If this makes it sound like a treatise... there is that aspect to it; yet it is a powerful novel -- just not one where the main intent was to produce a supernatural novel, but rather one using the mythical supernatural elements as an ideal vehicle for exploring certain ideas. I would recommend it, but with the warning not to expect a comfortable little thriller, but a book which is often very strong medicine: dark, almost unrelentingly grim, violent, at times repulsive, and even hard to take, but an important gem in the field nonetheless. (Though there are those who argue that he took some of his best material from H. H. Ewers' Vampire, which I have not been able to get my hands on....)