Dragon Mage (Dragon Wars #6)

After leaving Fossil to find his past, former Marine, Ben, found a new home as right hand man to the Triad of China Town. Fighting dragons and protecting citizens is all he cares about, until the day he meets Bella.
When Bella is kidnapped by a psychopathic cult that believes women are witches and witches need burning, Ben risks everything to save her. But in saving her, he might unleash a greater evil on them all.