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The room is somewhere…else. Even Sam isn’t really certain where. Ava had sure been right about the switches though Sam’s pretty certain he’s the only one that managed to flip the dimension-hopping one.
Sam’s got the place warded, of course. No one gets in but him and Dean. No one gets out but him.
His gaze travels the vaulted ceiling, the smooth walls and a low whistle echoes back from all sides. Sam’s power flares and the room’s an ocean, a desert, a torture chamber, a porn set, an abattoir. He can’t wait any longer. Dean's coming here now.