When a new family moved in next door, the eerie resemblance between their daughter and my own sent me spiraling into suspicion. Could my husband be hiding an affair?

I had to confront him, but the truth turned out to be far darker than I imagined.There they were, Emma and Lily, twirling in our backyard like twin sunflowers chasing the light.

Their laughter rang out, a perfect harmony that should’ve warmed my heart. Instead, it sent a chill down my spine.

I squinted, trying to spot a difference — any difference — between my daughter and our new neighbor’s kid.

But it was like looking at two copies of the same photograph. Same golden curls catching the sunlight, the same button nose, and the same mischievous glint in their eyes.

The only obvious way I could tell my Emma from Lily was the inch or so height difference between them. “Heather?” Jack’s voice snapped me out of my trance.