My 22-year-old daughter brought her boyfriend over for dinner, and I welcomed him with a smile. But when he dropped his fork for the third time, I saw something under the table and dialed 911 without anyone hearing me. My daughter was pale. He wasn’t blinking. And his shoe was stepping on her foot like a threat.

“Act normal,” Evan ordered me. “One weird word and I kill her right here.”

Danielle closed her eyes.

I felt the world shrink, like during an earthquake when you don’t know whether to run or pray. I thought of my dead husband, of the first time I held Danielle in the delivery room, of her newborn hands squeezing my finger as if she already knew how to ask for help.