I had stumbled onto a routine.

A system.

Something the two of them had built, carefully, in the hours I spent at work keeping other families’ loved ones alive — a secret life that ran on the engine of my absence, and required, as one of its moving parts, that my five-year-old be tucked out of the way downstairs and told to be quiet and wait.

My work had not just failed to protect my son.

My work had been the very window they used.