A story begins with this nebulous feeling that’s hard to get a hold of and you’re testing your feelings and assumptions, testing what you believe. They end up turning into keepsakes and mementos –like amber in which a memory gets trapped.

In later years, holding forth to an interviewer or to an audience of aging fans at a comic book convention, Sam Clay liked to declare, apropos of his and Joe Kavalier's greatest creation, that back when he was a boy, sealed and hog-tied inside the airtight vessel known as Brooklyn, New York, he had been haunted by dreams of Harry Houdini.

I don't care what is written," Meyer Landsman says. "I don't care what supposedly got promised to some sandal-wearing idiot whose claim to fame is that he was ready to cut his own son's throat for the sake of a hare-brained idea. I don't care about red heifers and patriarchs and locusts. A bunch of old bones in the sand. My homeland is in my hat. It's in my ex-wife's tote bag.

All the preparation in the world doesn't avail you if you can't make that imaginative leap and put yourself in the position of the characters you've created, to imagine what it's like to be somebody else.

Childhood is a branch of cartography.

It was the kind of promise a father makes easily and sincerely, knowing at the same time that it will be impossible to keep. The truth of some promises is not as important as whether or not you can believe in them, with all your heart. A game of baseball can't really make a summer day last forever. A home run can't really heal all the broken places in our world, or in a single human heart. And there was no way that Mr. Feld could keep his promise never to leave Ethan again. All parents leave their children one day.

When I first decided I wanted to be a writer, when I was 10, 11 years old, the books that I loved obviously and openly fit that description: They came with maps and glossaries and timelines - books like Lord Of The Rings, Dune, The Chronicles Of Narnia. I imagined that's what being a writer was: You invented a world, and you did it in a very detailed way, and you told stories that were set in that world.