"Whatcha reading, bunk buddy?" Lucifer peers over Sam's shoulder.
Sam stiffens, but keeps his eyes fixed on the page in front of him.
The words on the page start to blur, then swim together, then refocus. "You never left," every sentence says.
Sam slams the book shut and drops it to the floor.
He tries to breathe normally, looks up at Dean who is waiting for an explanation. "There was a-a spider," he says lamely.
Dean smirks and calls him a pussy.
Lucifer loves Sam's idea. Thousands of black spiders crawl out of Dean's ears and nostrils.