My 4-year-old daughter pointed at my husband's boss's wife and said, "That's the lady who bites."

A shiver ran through my entire body.

Vanessa remained completely still. Richard looked at his wife, then at Daniel.

Daniel opened his mouth, but no words came out. I crouched down next to May, trying hard to stay calm.

"Honey," I said, "when did you see Vanessa at our house?"

May shrugged.

"Many times. Dad said he was helping with his big project."

Across the courtyard, someone dropped a glass. Richard clenched his jaw.

"Your big project," he said quietly to Daniel.

Vanessa let out a giggle, but it sounded weak and shaky.

"He's four years old. Children get things mixed up."

May frowned immediately.

"I don't get things mixed up. You were wearing red shoes."

Vanessa's laughter faded. Her perfectly serene face twitched for a moment, but it was enough. She brought her hand to her throat. She glanced at Richard, then looked away.

"I…" he began.

—And you told Dad that the blue folder was in your car—May continued.

Richard's eyes slowly turned towards Vanessa.

"The blue folder," he repeated.