Alpha to His Omega by Lynn Hagen

Taken from an abusive pack, Shiloh has lived at the Den for over two decades, feeling as if he didn’t quite fit in with all the couples in the house. On an outing with Johnny and Spencer, Shiloh is pulled into one of their schemes and finds himself in Sebastian Brac’s territory. They were supposed to only stop for coffee, until the alpha steps into the shop and Shiloh realizes that the brooding stranger is his mate.

Since meeting two decades ago, Sebastian has been at odds with his brother and keeping his distance. When Sebastian enters the coffee shop to get warm, a wonderful smell leads him to a shy little wolf hiding behind the fireplace. Sebastian thought butting heads with Maverick over Shiloh was bad enough, but when his mate’s evil twin escapes a mental ward and heads straight for Shiloh, Sebastian and his pack must stop the twin before he kills Shiloh.