WHILE I WAS OVERSEAS FOR WORK, MY HUSBAND TOOK HIS TWO KIDS ON A DISNEY CRUISE—AND LEFT MY 8-YEAR-OLD SON HOME ALONE FOR SIX DAYS.

Apparently curved architectural excitement was all it took.

He did miss the basement.

He’d built an entire Lego city down there, complete with a hospital, police station, and a bank that had somehow been robbed four times.

“Bad neighborhood,” he’d explained.

I missed things too.

The garden.

My kitchen window.

Sunday coffee on the back porch.

Sometimes I even missed Mark.

I don’t say that because I regret leaving him.

I say it because four years of marriage don’t disappear just because somebody gives you a reason to end them.

There were good days.

There were private jokes.

There were nights Mark sat beside me when I couldn’t sleep after Noah’s father died.

There were ordinary Tuesday dinners when all five of us laughed until somebody choked on a French fry.

Those things were real.

So were the six days.

I eventually learned you don’t have to erase the good memories to justify leaving.

You just have to stop using them to excuse what you can no longer live with.

The investigation into what happened with Noah continued separately.

Mark had his own attorney and his own responsibilities there.

I stopped asking Susan to predict what every meeting or phone call meant.

It wasn’t mine to manage.

That was harder than it sounds.

Managing Mark had become a habit.

Mark also started counseling.

I didn’t know much about it because I stopped asking.

Tyler and Madison continued seeing him according to their normal schedule with their mother.

They didn’t abandon their father.

I’m glad they didn’t.

He was still their dad.

But something had changed.

A few months later, Tyler called me.

He still did that occasionally, usually when he needed a recipe I’d made or couldn’t remember the password to something.

That day he said, “Dad wants to take us somewhere this summer.”

“Oh, yeah?”

“He said maybe the three of us could go to Tennessee.”

I waited.

Tyler continued.

“So I asked him, ‘Three?’”

I smiled despite myself.

“What did he say?”

“He got quiet. Then he said, ‘Four, if Noah ever wants to come.’”

Neither of us said anything for a moment.

Finally Tyler said, “That’s better, right?”

“It’s different.”

“Same thing.”

“No. Different is where better starts.”

Tyler considered that.

“You’ve been talking to your lawyer too much.”

“Probably.”

Noah wasn’t ready to go anywhere with Mark.

Nobody forced him.

Mark wrote him a letter instead.

When the envelope arrived, I put it on the kitchen counter.

“You don’t have to read that.”

Noah picked it up.

“What’s in it?”

“I don’t know.”

“You didn’t read it?”

“No.”

That surprised him.

“You read everything.”

“I absolutely do not.”

“You read the back of cereal boxes.”

“That’s important nutritional journalism.”

He rolled his eyes and took the letter upstairs.

He never told me everything Mark wrote.

I never asked.

Later Noah said only, “He said sorry.”

“Okay.”

“Do I have to write back?”

“No.”

“Can I later?”

“Sure.”

That seemed to satisfy him.

About four months after that night, Noah and I went back to Greenway Market.

We brought flowers and a card.

Denise was behind the customer-service counter.

When she saw Noah, she came around so fast she nearly knocked over a display.

“Look at you.”

She hugged him.

“You’ve gotten taller.”

Noah looked skeptical.

“It’s only been four months.”

“Well, apparently you had a growth spurt just to prove me right.”

He smiled.

I handed her the flowers.

She shook her head.

“You didn’t need to do this.”

“Yes,” I said. “We did.”

Denise looked at me.

There are some thank-yous you can’t really put into words without making everybody uncomfortable in the middle of a grocery store.

So I didn’t try.

She squeezed my hand.

That was enough.

On the way out, Noah stopped.

The bench was still there.

Same metal bench.

Same spot beside the entrance.

People walked past us pushing carts.

Noah looked at it for a few seconds.

Then he sat down.

I sat beside him.

Neither of us said anything at first.

Finally, he said, “You know what I thought that night?”

“What?”

“I thought maybe nobody knew where I was.”

I looked at him.

He was watching a man load grocery bags into a minivan.

Then Noah said, “But Denise noticed.”

“Yes.”

“And Aunt Rachel came.”

“She did.”

“And then you came home.”

“As fast as I could.”

He nodded.

We sat there another minute.

Then he asked, “Do you think Mark’s a bad person?”

I had wondered when that question would come.

“I think Mark did something very wrong.”

“That’s not what I asked.”

“No, it isn’t.”

He waited.

Eight-year-olds can be surprisingly patient when they know you’re trying to avoid a question.