“Better,” Tom whispered. “It’s a moving picture machine .”

With a grunt, Tom grabbed the crank and spun it backward. The film reel screamed in reverse. Injun Joe’s hand retreated. The train roared backward into the tunnel of light. The older Tom winked, tipped his straw hat, and whispered: “See you at the fence, kid.”

“Tom!” Huck screamed. “Turn it off!”

Then the lantern died. The sheet fell limp.

Tom didn’t know what “DVD” or “Rip” meant. “SiRiUs” sounded like a star or a pirate king. But “Share” was clear enough.

The sheet flickered.

And the world changed.

It was a motion picture film canister, stolen—liberated, he corrected—from the back of a traveling salesman’s Ford coupe. The label, smudged but legible, read: