It became known that after this orgy Nastasia Philipovna had entirely disappeared, and that she had since been traced to Moscow; so that the exodus of the Rogojin band was found consistent with this report.
There are no more uses of "exodus" in the book.
Show samples from other sources
Just to be thorough, she peeks in to make sure there are no stragglers, or kids trying to avoid the mass exodus.
Neal Shusterman -- Unwind
Packed up their camper on the afternoon of the sixth day with everything they could fit and hit the road, joining a mass exodus to somewhere else, because anywhere else seemed safer for some reason.