The Last Unicorn's Mate. Sheridan Pack, #9

Juniper thought she was finally free, escaping her father's cruel grip. Her life changes when she meets Asher, whose scent reveals he is her destined mate. The spark between them is undeniable, but the world around them is collapsing. The turmoil of a devastating epidemic known as the red death ravages the shifter community, leaving desperation in its wake. With every passing day, the stakes grow higher and the only hope lies in the fabled unicorn, whose horn possesses the miraculous power to cure the afflicted.
Juniper faces a choice: risk everything for love or cling to her new freedom. Asher's secret masks a truth that could doom her. Will they claim a life together or will love-like magic-cost them everything?