He smiles at that, but it's fairly free of humour. "No, this isn't one of mine. I have had some of the shared variety, though not many." But this is still pretty vague and generalised. Nothing he didn't already know. She presumably doesn't have any dream related powers. "People 'drop in' to your dream--have you dropped in on any of theirs, on a more personal scale than these little dream gatherings?"
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