An Alpha's Promise — Evelyn Glass

This is the sequel to Untamed: An Alpha's Kiss Charmaine Vella has never believed in destined mates between Lycans until she found her own mate in Parker Kreuger. The only problem? The Vella and Kreuger packs have hated each other for centuries and old wounds are the hardest to heal. To make matters worse, by choosing Parker, Charmaine has alienated her childhood best friend Scottie, whose sullen mood has only darkened with each passing day. As Charmaine adjusts to her new life with Parker, she'll find that things have become anything but simple. All she wants is to spend her days with Parker and raise the family they're building, but it is precisely her relationship with Parker that is generating whispers of renewed conflicts and threatening to shatter the fragile peace between their packs and she must stand by her Mate's side to help him rein in the wilder members of his pack. When an unimaginable disaster strikes, Charmaine and Parker find themselves facing an adversity they never thought they'd face and must draw strength from each other. But will it be enough to keep them--all of them--safe?