Ain't No Mountain — Janet Taylor-Perry

Three teenage triplets, Tornabolt (Tor); Taekeyla (Tae); and Terkoyze (Terk), in a post-apocalyptic world are told they are Elementals reborn and embark on a quest to find and free their father-a deity that sired them. Once they meet their father, Yarwhin Ignis, a supernatural being, just short of an actual god, their powers gain strength. Their mother, Illuminet, is the missing Elemental, but she cannot use her powers until Yarwhin is free.Yarwhin has been imprisoned in an obsidian cavern, which siphons his power. Only the triplets can travel to distant worlds to find enchanted artifacts that hold his powers. Once all four mystical items are in his possession, he can break free of the cell somewhere in oblivion and track down his own brother who imprisoned him and caused their world, Salmyra, cataclysmic upheaval. Their search takes them to other worlds and puts their very existence in mortal danger. Once their powers manifest, they realize that alone they are nothing. Only together can they overcome the evil that almost destroyed their world.Ain't No Mountain chronicles Tor's quest and is the first book in a series of four in the Gods and Children series.