That little game stayed with me.

I’d spent years believing that being a family meant letting the same people into our lives regardless of how they behaved.

Harper’s cardboard castle operated under a clearer rule: trust was something people earned and maintained.

At bedtime, I told her that grown-ups made decisions about safety so children didn’t have to.

She asked whether she had to make a list of safe people.

I told her we could talk about whom to call if she ever needed help, but she wasn’t responsible for policing the world.