Edge of Time

Someone wants Alec and Riley dead. That someone can bend the will of others, forcing them to murder. That someone can travel through multiple dimensions, has powers beyond Earthly experience, and knows everything Alec knows. The Tyons have come to Earth, looking for Riley and Alec, who aren't even aware of their special genetic traits. Do Alec and Riley have the edge needed to save themselves, and more importantly, the world?