My son seemed unusually interested in whether I ate his gift. I told him someone else had enjoyed it instead. The sudden silence on the phone changed everything.

For the first time, he was wrong. I wasn’t calling Stanley to rescue my son. I was calling him to protect myself from him.

PART 3 — WHAT MY SON HAD BEEN HIDING
Stanley didn’t waste time comforting me with empty reassurances. After listening to everything that had happened, he told me to preserve the birthday card, delivery packaging, phone records, messages from Thomas, and every financial document I possessed, because if the chocolates had deliberately contained arsenic, the police would need more than my suspicions about why my son had sent them.