Chapter Text
Dean Winchester did not do well when things went off-script.
He liked plans. He liked roads that stayed roads, monsters that stayed monsters, and angels that—well. Stayed where they were told.
So when the portal spat them out into blinding sunlight, hot sand, and the unmistakable sound of tropical birds screaming like they were auditioning for a horror movie, Dean knew—immediately—whose fault this was.
He rolled onto his back, groaning. “Cas.”
Castiel sat up beside him, eyes wide, trench coat already half-dusted with sand. He looked… delighted.
“Oh,” Cas breathed. “Dean. This place is remarkable.”
Dean pushed himself to his feet and took in the surroundings: palm trees, ocean stretching forever, dense jungle behind them. No roads. No cars. No signs of civilization.
Sam stood up more carefully, brushing sand off his jacket. “Okay. Everybody good? No missing limbs?”
Crowley coughed sand and spat it out. “I swear to God, if I’ve been teleported to hell by way of a beach, I’m lodging a formal complaint.”
Dean pointed at Cas. “You did this.”
Cas blinked. “I… did not intend—”
“You never intend,” Dean snapped. “You said the sigil would take us back to the bunker.”
“Yes. And it would have. If the ley lines here weren’t—”
“Here?” Dean laughed sharply. “Buddy, we don’t even know where here is.”
Cas stood, brushing himself off, wings rustling invisibly. “We are not on Earth. Not precisely.”
Sam sighed. “Of course we aren’t.”
Dean started pacing. “So let me get this straight. We were hunting a witch. The witch cursed a map. Cas touched the map. And now we’re—what? On Gilligan’s Island?”
Crowley raised a hand. “For the record, I didn’t vote for touching the glowing cursed object.”
Cas looked genuinely apologetic. “Dean, I only wanted to understand it.”
Dean stopped pacing. “And that right there? That’s the problem. You always want to understand. You never think about what it’ll cost the rest of us.”
Cas flinched. Sam noticed.
“Dean,” Sam warned. “Dial it back.”
But Dean couldn’t. Not with the sun beating down and no way home and Cas looking at the jungle like it was a miracle instead of a death trap.
“You happy now?” Dean said to Cas. “You got your adventure.”
Cas swallowed. “I didn’t realize you felt that way.”
Crowley muttered, “Oh, this is going to be a long vacation.”
They figured it out slowly.
The place wasn’t hell. Wasn’t purgatory either. It was… contained. An island, magically sealed, populated by beings that didn’t register as human or demon or angel.
Sam called it a pocket realm.
Crowley called it “a nightmare Airbnb.”
Cas was fascinated.
Dean was pissed.
They trekked inland, Sam taking point, Crowley complaining, Cas stopping every five minutes to observe something glowing or breathing or moving when it shouldn’t.
Dean watched him with clenched teeth.
“You know,” Dean said finally, “if you get us eaten by something with too many teeth, I’m haunting you.”
Cas smiled faintly. “I would deserve it.”
That… took the wind out of Dean’s sails a little. But he didn’t apologize.
They reached a village by dusk—stone huts, firelight, people who looked almost human. Too smooth. Too symmetrical.
The villagers welcomed them with cautious curiosity.
Sam negotiated. Crowley charmed. Cas asked too many questions.
Dean drank something handed to him and immediately regretted it.
“Okay,” he said, wiping his mouth. “That tasted like berries and regret.”
The villagers exchanged glances.
One of them—tall, sharp-eyed—studied Dean too closely.
Cas noticed. “Dean?”
“I’m fine,” Dean said automatically.
But something crawled under his skin.
It hit him that night.
Dean woke with a snarl in his throat and fire in his veins.
His hands shook. His vision tunneled. Every sound was too loud, every smell too sharp.
He could hear Sam breathing across the fire.
Hear Crowley’s heartbeat.
Hear Cas shift in his sleep.
The hunger scared him.
Dean sat up, fists clenched, jaw locked so tight it hurt.
Get it together.
But something inside him—something old and furious and feral—was pacing, slamming against his ribs.
When Cas stirred, Dean stood abruptly and backed away.
“Dean?” Cas asked, confused.
Dean turned and ran into the jungle.
By morning, the village was in chaos.
Dean came back bloodied, eyes wild, breath ragged.
“Stay back,” he growled.
Sam froze. “Dean?”
Crowley raised an eyebrow. “Well. Someone woke up on the wrong side of the apocalypse.”
Cas stepped forward. “Dean, something is wrong.”
Dean’s lips pulled back from his teeth.
And then he lunged.