“We—” Elliott started. “We don’t know what the light is.”

“Are you with the light?” he asked, breathless as a bell.

Jonah never returned, and he never needed to. The light needed keeping, and a clock needed winding, and Marrow’s End learned, in a way it could not name, to keep an eye on old windows and boards and seams. The world edged at its borders, patient as tide; the kids learned to edge back just enough, not from fear but from recognition—some doors were better watched than opened, and some lights once lit ask nothing more than steady hands.

Something on the bank shifted. Not animal—too deliberate, like someone settling into place. A shape rose from the water, not quite human, not quite furniture. It wore a sheen like the river itself and the suggestion of eyes that reflected the lamp like coin. Elliott felt the hum climb his spine into his teeth.

“You have to wind it,” Jonah said. “Keep counting.”

Elliott was thirteen with a crooked smile and a bike whose chain kept jumping. His best friend, Mara, had hair the color of a storm cloud and a soft way of saying the word impossible as if testing it for cracks. They’d been chasing local mysteries since they could ride without training wheels; ghosts, a flooded movie theatre, the mayor’s vanished schnauzer. This one felt bigger.

“You have it,” the boy said, and in his hands he held a glass jar. Within it, a mote of light pulsed, steady as a heartbeat. Around the rim, someone had taped in place a strip of an old comic book—a picture of a smiling astronaut, ink faded to beige. The boy’s name was Jonah, he told them, a name that stuck to Elliott’s tongue like a warning.