Avery Delaney was abandoned at three days old, and raised by her grandmother and beloved aunt, Carolyn. At ten, she saw her grandmother murdered before she herself was shot and left for dead. With the killer caught and serving a life sentence, Avery was drawn into a career in law and order. Her razor-sharp mind and ability to gather data and decipher evidence has made her an expert crime analyst for the FBI. Now she will have to use every one of those skil on a case that hits painfully close to home: her Aunt Carolyn has disappeared, lured by an assassin into an elaborate plot of madness and lethal vengeance.