Restraint - Ghost Targets, #3

We abandoned privacy and turned databases into something like gods. They listened to our prayers. They met our needs and blessed us with new riches. They watched over us, protected us, and punished the wicked. We almost made a paradise. But there were those who tried to hide from the databases' all-seeing eye. They used their wealth or power or intellect to turn themselves into ghosts within the endless archive.
The FBI's Ghost Targets team became experts at tracking them down, and they threw the worst of the monsters into private prisons where even Hathor's eyes could not see. Now a new threat forces Katie Pratt to enter the dark halls of one of these prisons. An old adversary trapped in Shadow Mountain holds the key to the mystery, and he'll only give it to Katie. But when a Shadow Mountain contractor is murdered, his hidden execution uncovers the most advanced ghosting device ever created.
Katie must solve the murder to save Hathor, and she will have to face down wardens, politicians, mob bosses, and deadly ghosts to do it. Only then will she uncover the terrifying secrets locked up in Shadow Mountain. Restraint is the third book in the Ghost Targets series.