She doesn't believe him, that much is clear, but the quicker Nate convinces her he isn't crazy, the quicker they can get Sam to a hospital. A small part of him wonders if maybe he is losing it, and that's what makes the decision for him. He turns his head, meets hers with pupils blown wide, trying to concentrate on the steadying feeling on her hands on his face.

"What's wrong?" he asks, and this time he means with him.

He hesitates, swallows hard. "You can't see him," he says slowly, turning the idea over in his brain, "can you?" He doesn't want to believe it, doesn't want to hear her say he's finally cracked, but he can feel it coming.