She Was the Last to Know

She is hunting a killer hidden inside her own memory. Investigator Elena Voss is assigned to the murder of Mara Ellison, a woman whose carefully ordered life ended without forced entry, witnesses, or a clear motive. As Elena follows the evidence, every clue points toward someone who knew Mara's routines, fears, and private habits with disturbing precision. Then Elena finds photographs taken inside her apartment, notes written in her own hand, and gaps in her memory she cannot explain.
What if the person closest to the victim is the one conducting the investigation?As the missing hours multiply, Elena begins to fear that another version of her has been planning something in the dark. Her partner, Daniel, tries to pull her back, but each attempt seems to complete a pattern neither of them understands. The closer Elena gets to the truth, the less certain she becomes that solving Mara's murder will save her-or that she wants to be saved.
In She Was the Last to Know, every recovered memory brings her closer to a final revelation that will reframe everything. For readers who loved The Silent Patient, Before I Go to Sleep, and The Woman in the Window. She Was the Last to Know is a slow-burn psychological thriller about fractured identity, dangerous memory, and the terrifying possibility that the person you cannot trust is yourself.