“How,” I managed, as he wrapped the second baby and pulled me and both children into the warmth of his own body, “how did you know I was in here?”

“I wasn’t here by accident, Clara,” Marcus said quietly.

He took out his phone, and he swiped to a photograph he had taken less than half an hour earlier, outside Vault 7, before he ever heard me.

It showed Victor standing at the freezer’s exterior control panel.

And it showed that Victor was not alone.

Standing beside my husband, at the control panel, holding a legal document, was Rachel.

My older sister.