At 2 a.m., while I was in labor, my mother-in-law kicked my pregnant stomach, making me fall into the basement, snarling, “Cheap women belong in the dark,” as my husband laughed upstairs with his guests. They thought they had abandoned a helpless woman to suffer alone. But hidden in that basement I discovered my husband’s fatal weakness. While contractions tore through my body, I crawled across the floor and hit “send.”

Inside those crates weren’t vinyl discs. They were the components of the “Ghost Server” I had been building in secret for three years. Every time Mark thought I was shopping for designer handbags, I was buying high-end processors. Every time he thought I was at a spa, I was hardwiring an encrypted relay through the mansion’s ancient electrical system.