Gene Roddenberry's Earth

Liam Kincaid, the human Protector assigned to Da'an, the North American Taelon Companion, has had a difficult time balancing his duties for the aliens with his responsibility as the head of the secret, underground Resistance that is Earth's only hope for survival under the aliens.
Liam has also struggled with his alien heritage. He's managed to control the shaqarava, the power he wields. It is part of his heritage, inherited from his Kimera ancestor on a far world in a distant galaxy.
Left to himself, he thinks he'd be able to master the power that sometimes possesses him, causing him to send a vast beam of energy toward some perceived threat. But when he is accidentally infected by a Taelon virus that Zo'or, head of the Taelon Synod, has unleashed for the purpose of creating shaqarava in humans, Liam catches more than the artificial flu that was designed into the virus.
Instead, he is so seriously ill that it will require more than medicine to cure him. For the illness has awakened memories he didn't know he had - memories that could save...or kill him.