Juneau by Calliope Stewart

Boston, 1915.
Juneau Wilde is the youngest child of the illustrious Wilde family. Despite her omega designation, she is an adventurous troublemaker that spends her days driving her widowed mother crazy. Juneau constantly bucks against the constraints of society, wanting to live the kind of life that the heroines in her favorite novels live.
One night, at a Gala meant to decide her future pack, she touches a mirror and is transported through time, only leaving behind one glittering, gold shoe.

Boston, 2022.
Juneau lands in the middle of a bar owned by Pack Steele, a group of former MC members. It’s there that she meets alphas Rex, Doc, Bat, Storm, and their omega, Podcast. Juneau is immediately charmed by the modern world and by the sweet and surly pack that vows to protect her until they can figure out how to send her back to her own time.
Unfortunately, the pack’s former MC is out for revenge, still angry about the pack’s abandonment of the club. This puts Juneau right in their crosshairs. In the end, Juneau must decide if her heart belongs in the past with her family, or in the future with Pack Steele.