Crimson Dahlia — Abigail Owen

Book #3 of the Svatura Series When Lila Jenner leaves her family and friends to start a new life for herself, Ramsey Pierce lets her go. Determined that the fire raging inside him will never harm her, he denies the magical bond that could be theirs alone.
When an old enemy resurfaces and Lila suddenly disappears, Ramsey realizes that he'll do anything to win her back and keep her safe beside him. But Maddox, driven by a centuries-old quest for revenge, is stronger than they ever imagined. And Lila could be the key to his ultimate power.
Friends and enemies must band together against this shared threat if any of them are to survive. Even then, they may all discover too late that one dragon is not always enough...