Billy Mason is thirteen years old, and he's always been running.

Running from his father, whose belt leaves marks that take weeks to fade. Running from Mr. Hensley at the soda fountain, whose eyes hold something dangerous. Running from the boys at school who smell weakness like dogs smell fear.

Now he's running from Winston Hewitt and Chad Duncan, their threats echoing through the hot summer air of 1942 as they chase him toward the abandoned railroad trestle—the one that ends at a gap where the tracks fell away decades ago.

Cornered, Billy does the only thing left. He jumps.

But he doesn't fall.

Instead, he lands in a shadow world—a mirror of his town where no one can see him, where the people he knows stand frozen in their darkest truths, where time moves differently and confession is the only currency that matters. ...