For as long as Cally O'Neal could remember, she had lived in danger. While her father was off fighting the invading Posleen, she had been raised by her grandfather, practically on the front lines of a war that had erased five billion humans from the face of the earth.

The abyss looks back--

In the final stages of the war, she had officially "died" and been recruited into the elite ranks of the Bane Sidhe, a group of underground warriors dedicated to breaking the stranglehold of the elf-like Darhel. A stranglehold the Darhel held on the Galactic Confederation before the war and now were extending to their human "allies."

And you become the abyss--

For forty years she has led a life of unremittent, unrecognized, unhallowed slaughter, wearing a constant stream of disguises, sending humans who support the Darhel off to meet their Maker, with her body, mind, and soul twisted and "improved" to serve the needs of her own "allies."

Now, on the most important mission of her career, at odds with her superiors, hunting a mole that could destroy her at any moment, and inexorably falling in love with the enemy, for the first time in her life she has to wonder if it's worth it. If being a dragon is the best way to fight the dragon. And if there will be a morning after for the little girl who liked to play with guns and swim with the dolphins.

Cally had been fighting for the future of the human race, but now she is in a war for survival: the survival of her soul.