Ascension of the Pack by Heather G. Harris

Power. Revenge. Destiny. The Queen of Werewolves is ready to claim them all.
My best friend’s wedding was cancelled and she was arrested. With some smoke and mirrors we got her back, but an emergency called me home before I could get my revenge for her maltreatment.
Jimmy Rain, vile alpha werewolf and power-hungry coward, thought he could attack my stronghold while I was distracted. Big mistake: knowing that Jess is safe, now I’m gunning for him. No more games. He’s about to learn why the sentient seat of power crowned me Queen of Werewolves. I’ll stop at nothing to destroy him … permanently.
But there’s more at stake than taking down a rival alpha: I need to secure the future of my pack, and that means pulling off a heist to reclaim an ancient magical artefact. There’s one problem: it’s sitting in a dragon-shifter’s hoard and she won’t give it up without a fight.