Wolf at the Door ~ Christine Warren

this is the first book in the Others series.
in this book we see a lot of the characters from the Fixed series. Quinn is a werewolf, from Ireland, in New York for a meeting with the local Council of Others, while there he meets Cassidy, a foxwoman, and anthropologist, who is supposed to help him research the People of the Light, the group out to do as much harm to the Others as possible.