While I was away, my sister moved into my home without asking. She thought I’d never stop her.

The first message reached me at 2:13 in the morning, Dublin time.

I didn’t panic, because panic has never improved the opening stage of a crisis.

My phone vibrated so violently against the hotel nightstand that it sounded personal. Beyond the rain-streaked window, Dublin’s financial district glittered with black glass, wet pavement, and scattered reflections of gold.