Chapter 1: Section 3: Page 22: Line 20 (305)

 Here in the shadows, the faces moving by smiled, grimaced, or stared directly at Lindsay and Miles as if somehow they knew them, as if in the boys' long career of adventure in exotic corners of the world there had been accumulating, unknown to them, a reserve of mistranslation, offense taken, debt entered into, here being re-expressed as a strange Limbo they must negotiate their way through, expecting at any moment a "run-in" with some enemy from an earlier day, before they might gain the safety of the lights in the distance.

* * * * * * * * * *

Here, the literal and figurative representation of the section of the Fair steeped in half-light and shadows begin to merge. The attractions placed in this section of the Fair, the opposite part to the Midway expressed by observers earlier as the locale of the "white" attractions, are the "third world" exhibits. The nervousness the boys feel from even common problems they could have encountered in their trips across the globe (mistranslations, cultural offenses, unknown debts taken on) might turn into a physical encounter here in the darkness. People from all across the globe have been brought in to the Chicago World's Fair as "cultural exhibits" and placed here in the half-light, as has been said, to protect the delicate sensibilities of white visitors. Randolph warned the boys earlier of these areas of the Fair, where danger could be lurking (danger that threatens more than just the physical aspect of the young men), and here they now nervously move through it by nature of having entered the Fair through a seedy gap.

"boys' long career of adventure"
How long could it actually be? They're still referred to by the narrator as "lad." Of course, if they're dead or angels, what does time mean to them?! They'll be "lads" forever!

"a strange Limbo they must negotiate"
Miles and Lindsay as Dante and Virgil (respectively!) making their way through the boundaries between Heaven and Hell. This could be a reference to their being ghosts or angels because I'm not abandoning that theory yet! Here they find themselves negotiating Limbo, just as when they're on the Inconvenience, they traverse a liminal space between Heaven and Earth.