Very interesting premise....everyone is born with an affinity to one of the elements: fire, water, air, earth. Some are stronger than others and can actually manipulate their element. Therefore, they must be eliminated before they become a threat due to their power. Four brothers in the same family are targeted for elimination and must find a way to survive somehow.
The backstory of this family is kind of sad. Brothers growing up without their parents with the oldest just barely of legal age to claim guardianship. We enter the story in their teenage years. Talk about angst. Throw in the teenage hormones plus trying to learn control over their powers while avoiding being killed off. Definitely a page-turner.