M.J. Sewall 
The Edge Of Destiny [EPUB ebook] 

After the thrilling events in Forever Warriors, the five California teenagers with extraordinary abilities are in more danger than ever.
Three Rageto elders have come together to end the breakout of new heroes, and the ancient Amartus warriors that helped them before are missing. They must face this new threat alone.
This time, new allies appear, but many more enemies are hiding in the shadows, ready to strike. No one is safe, not even their families. New truths about the ancient struggle come to light, but will it be enough to save them?
No choice is easy and danger is everywhere, and the world will be changed forever.