Cold Fire Book One Gun Melody

Living in 22nd century America, detective Nina Tarot is a member of SPEAR, Special Police Emergency Advanced Response, a crime fighting unit that knows no equal. Nina has just cracked a very hard case and her next assignment is even harder. A ruthlessly efficient and elusive assassin who looks like a young teenage girl is hunting criminals without mercy. As Nina begins to follow the trail of blood, she comes to a shocking realization that the killer is a cyborg. Nina's own success as SPEAR agent is based on her own dark secret that if revealed, will taint her life and honor forever. And the hunt for the cyborg vigilante turns into something far more deadly than she could possibly believe.