Four Lords of the Diamond

This is Book One of the Epic Tetralogy, The Four Lords of the Diamond. Aliens are spying on Earth from one of the four worlds that make up the Warden Diamond. But it is impossible to send agents to any of the four worlds because of unique microscopic symbionts that make it impossible for visitors to leave the Diamond. Seeking a unique solution, each of the four worlds making up the Diamond is sent a person whose mind has been stripped of everything and who is now controlled by an agent of the Confederacy. Lilith is the first planet to be visited. Here, Cal Tremon, stripped of his own personality, must overcome incredible odds and survive not only the incredible perils of the foreign planet but his own controllers as well.

Four worlds that cannot be visited. Four worlds that must be visited. Aliens are spying on Earth from one of the four worlds that make up the Warden Diamond. But it is impossible to send agents to any of the four worlds because of unique microscopic symbionts that make it impossible for visitors to leave the Diamond. Seeking a unique solution, each of the four worlds making up the Diamond is sent a person whose mind has been stripped of everything and who is now controlled by an agent of the Confederacy. Cerberus is the second planet to be visited. Qwin Zhang is stripped of her personality and left naked on the planet with her mind now occupied by one of the Confederacy's best operatives. Can she/he survive long enough to find out the truth about the deadly planet known as Cerberus?

They took the body of Park Lacoch and stripped away his mind. Then they stuck him aboard a spaceship and exiled him to Charon, from which no return was possible. And just when he thought things couldn't get any worse, Park found himself transformed into a changeling - a half-beast, half-man, with the beast rapidly gaining ascendancy....