He tore that up too.

The final letter began: Dear Theo and Eli, your mother told me she was pregnant, and I failed to listen.

Other adults hid her attempts to reach me, and that was wrong.

But I also made it easy for them to believe I would not ask questions.

I cared more about being right than understanding what was happening.

You deserved better.

He wrote about the first afternoon in the library, the moon tower, the dinosaurs, and the bakery.