You were the closest thing to a sister I ever had.” Matthias sank back into his chair with his face in his hands.

“My whole life,” he said, “my best friend was my brother, and I never knew.”

I sat with that a moment, and I thought about all the years I had known Fabian and never understood a single thing I was looking at.

Every holiday he had spent at our table instead of with family of his own — I had felt a little sorry for him, in a vague way, and assumed he was simply a bachelor without much kin.

I had never once guessed that the reason he came to us was that we were, secretly, the only family he had — that when he held my newborn daughters over the years, he was holding his own nieces, and could not say so; that when he taught Leandra to ride a bike in our cul-de-sac, he was an uncle in everything but the one word he was forbidden to use.

Fifteen years of quiet, patient, unpaid love, given to a family that did not know he belonged to it, by a man who had decided that being near us in silence was better than not being near us at all.