nAn FBI agent tracks a brilliant serial killer in New York--right back to her own cold-blooded past in a riveting thriller by the Wall Street Journal bestselling author of The Cipher.n nFBI Special Agent Daniela Dani Vega was seventeen when her mother murdered her father. Ten years after Danis own damning eyewitness testimony sealed her mothers fate, shes starting to have doubts. What if she got it all wrong?n nA veteran NYPD homicide detective agrees to reopen the closed case on one condition--Dani must help him find a serial killer whos been operating throughout New York City for the past decade. If anyone can decipher his patterns, and his riddles, its a trained codebreaker like Dani. The killer knows this too. And his next riddle--and victim--is meant just for her.n nFor Dani, stopping a killer--and learning what really happened to her father--becomes more personal and more dangerous with each new twist. As secrets of the past are unearthed, the truth could forever change Danis life...and the lives of everyone she loves.n