My sister asked me to watch my niece for the weekend—but what I discovered at the pool made my heart stop

Now.

A second message followed.

Claire, I am serious.

Sarah almost never called me Claire. When we were young, I’d been Clare-Bear. Later, C or Sis.

My full name meant something was deeply wrong.

I glanced at Lily in the rearview mirror.

She was staring at my phone with unmistakable fear.

Sarah called repeatedly.

Then Mark called.

He hadn’t contacted me directly continue reading …