Pierce, Blake. Ella Dark mystery #7

FBI Special Agent Ella Dark has studied serial killers from the time she could read, devastated by the murder of her own sister, and has gained an encyclopedic knowledge of murderers. A serial killer is leaving clues around the city, using Ella's knowledge of historical murders to taunt her. Can Ella dig deep into her encyclopedic mind and crack the case? Or will this killer finally outsmart her?

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