Fury series (John Farris)

Gillian Bellaver's family is one of the wealthiest in the world. Robin Sandza's father Peter is a government assassin. The two teenagers seem to have nothing in common. Yet they are spiritual twins, possessing a horrifying psychic energy that threatens humanity. While dangerous and fanatical men vie for the secrets of their awesome power, Peter Sandza, using all the ruthless skills of his trade, makes a final desperate effort to save them.