Huh. Speaking of storylines merging, I'd be very curious as to what, exactly, Tobi would see while Noah had Ciel hanging about.

And are the critters called 'nightmares' because they come out of the collective unconscious or whatever, or are they called that because that's what they give you? Because they bear at least a passing resemblance to the spirit of pandemonium that Tobi saw, and it would be a pretty convincing explanation as to why various magic-y solutions aren't working against them, given that they seem to be the source of human(-ish?) magic.