My son called me from our bathroom at noon and whispered that a woman in our living room said she was his “real mother.” My husband would not answer his phone. By the time I pulled into the driveway, I was already afraid of what I might find, and I still wasn’t prepared for it.I barely remember locking my office computer before I ran to the parking lot. All I could hear was my son Jonathan’s small, shaken voice: “Mommy, the woman in the living room says she is my real mom.”That terrified me.As I drove, my mind kept building explanations and rejecting every one.Maybe Jonathan had misunderstood. Maybe Leo had brought home a coworker with a terrible sense of humor.I called Leo again. No answer. Again at the next red light. Again, when I turned onto our street. He still did not pick up.That morning had been ordinary. I had kissed Leo and Jonathan goodbye and told them both to enjoy their day together. Leo rarely took time off, and Jonathan had been thrilled to miss school.

Leo traveled a lot for work. Too much, maybe.I had never had proof of anything, never really had suspicion, but driving home with my son hiding in a bathroom made me wonder whether there had been things I had overlooked.Still, none of that explained why a stranger would tell my child she was his real mother. By the time I killed the engine, I was bracing for my wholeI pushed open the front door and called, “Johnny!”The house was too quiet.”Johnny!” I called again, louder. “Leo.”The bathroom door upstairs flew open, and Jonathan came running down with tears on his face and both hands outstretched. I met him halfway up the stairs and dropped to my knees just in time for him to crash into my arms.”I’ve got you, baby,” I whispered. “I’m here.”He buried his face in my neck, then pointed with a trembling finger toward the living room.A woman was sitting on the floor near the coffee table, her clothes damp and streaked with dirt, her hair hanging in wet tangles. She was just staring at Jonathan with a fixed, aching focus that sent a chill through me.