Sleepovers when she became older.

And every September 9, I woke up thinking about another child.

Rosie at ten.

Rosie at fourteen.

Rosie at sixteen.

I never said her name around Hannah.

Nobody did.

My mother removed the photograph from the hospital that showed me holding both babies.

My sister learned not to mention Rosie at family gatherings.

Once, my father accidentally said “the girls” when Hannah was eight.

I shot him such a sharp look that he immediately changed the sentence and pretended he had meant Hannah and her cousin.

Everyone knew.

Everyone helped hide it.

Now, saying that out loud sounds terrible.

Back then, I called it protection.

When Hannah was twelve, she struggled socially.

She came home crying constantly.

I told myself,

We cannot tell her now.

At fifteen, she became anxious about grades.

At sixteen, she went through her first painful breakup.

At seventeen, she was applying to colleges.

There was always something.

Always another reason to wait.

David kept bringing it up.

Usually when we were in the car, maybe because I couldn’t walk away.

“She has the right to know.”

“And then what?” I would say. “She spends the rest of her life wondering why she survived and Rosie didn’t?”

“Maybe she won’t.”

“You don’t know that.”

“Neither do you.”

That usually ended the conversation.

Sometimes I resented David for bringing Rosie up.

Other times, I resented him for allowing me to silence him.

The truth was, I had held two babies in my arms for nine days.

Then I had been left with only one.

I had spent years pretending the missing child had never existed.

David handled his grief differently.

Every year after Hannah’s birthday celebration, he disappeared into the garage for about an hour.

I never asked what he was doing.

I assumed he needed time alone.

I had my own rituals.

I always did laundry on Hannah’s birthday, even if there wasn’t enough for a full load.

Folding towels calmed me.

We had become experts at grieving separately.

Then Hannah turned eighteen.

We threw a party at our house.

About thirty people came.

Relatives.

Neighbors.

Friends.

My brother handled the grill.

My sister brought far too much potato salad.

There was a grocery-store cake with HAPPY 18TH, HANNAH! written in blue frosting.

Her biggest present was a used car.

Nothing fancy.

But hers.

When David handed her the keys, she screamed.

“Oh my God!”

She threw her arms around him.

“You actually bought it?”

He laughed.

“No, that’s a random car I stole for the occasion.”

She hit his shoulder.

Everyone laughed.