He steps over the property line, and he's in the doorway. And in that instant he becomes solid and visible to all the avatars milling outside. As one, they all begin screaming. Not that they have any idea who the hell he is—Hiro is just a starving CIC stringer who lives in a U-Stor-It by the airport. But in the entire world there are only a couple of thousand people who can step over the line into The Black Sun.