The Darkest Night (Witch Queen, #1)

Hana Mae Jin does not believe in magic. Unfortunately, magic believes in her. 
When the hospital where Mae Jin works is attacked by terrifying monsters, a power the mortuary assistant never knew she possessed awakens, sending a wave of magic across New York that has unforeseen repercussions.  Nikolai Stanisic has only one wish. To stop his brother Oscar and their father the Sorcerer King from carrying out the dreadful scheme that was put into motion the night they killed his mother. His only chance at success lies in rousing the soul of the being his father fears the most: the rightful Witch Queen, fated to save the world of magic and rule over it. Thrust into a fantastical realm hidden from most mortal eyes, Mae soon learns of her mythical past and the incredible destiny that awaits her. Armed with the weapon and the familiar who were once promised to her, she joins forces with Nikolai and Vlad Vissarion, a seductive Russian mobster who wants to stop a demon-infested gang from taking over the city’s criminal underworld.  With the New York coven and a pair of mysterious magic users from Chicago at their side, Mae, Nikolai, and Vlad find themselves facing an enemy far more vicious than they could ever have imagined and uncover a terrifying plot set in motion by the Sorcerer King and his Dark Council. 
The Darkest Night is the first book in the brand-new urban fantasy series Witch Queen. Featuring a mortuary assistant who labels herself 'just a chick from Koreatown who likes beer and cutting people up,’ a sardonic fox, a steak-loving sentient weapon, and a whole bunch of other worrisome characters, The Darkest Night is a rip-roaring ride full of magic, monsters, mayhem, and, well, steak. Get the spellbinding first book in this action-packed urban fantasy series today and enter a universe you won’t want to leave. Or may not be allowed to leave. Some of those characters really are worrisome...

Witch Queen is the third series set in the bestselling Seventeen universe and follows on from the Seventeen and Legion series. It contains references to characters in the other series and the odd cameo appearance.