Charon: A Dragon at the Gate

In this third installment of the Epic Tetralogy, tension escalates as aliens surveil Earth from one of the four worlds of the Warden Diamond. The challenge lies in the unique microscopic barriers that prevent sending agents to these worlds, creating a complex situation. The story unfolds with themes of espionage, interstellar conflict, and the struggle for power, as characters navigate the intricacies of their environments while facing the looming threat of alien influence.