Return of the worthless omega

“To the Hilton Pack, Rachael was just a worthless Omega. To the terrifying Alpha of a rival pack, she was a forbidden mate. But five years after being banished to the brutal human world, she returns as a masked healer holding the only cure to a deadly plague wiping out the packs. When her obsessed former mate confronts this stranger who looks like his lost love but smells entirely wrong, secrets begin to unravel and a dark conspiracy threatens the entire werewolf dynasty. Will she save the people who destroyed her, or burn both packs to ash?”