When Ais parted ways with Theona and Theone, she did see the two warriors from the Amazon nation retreat into the same passage.
In other words, the two pairs of Amazon twin sisters later ran into each other and most likely engaged in another fight.
If Theona and Theone were forcibly taken away, possibly even out of the labyrinth city, it is highly likely that those two female warriors were responsible.
Ordinarily, Orario allows entry but not exit, at least for adventurers. To prevent the loss of city battle strength, the Guild imposes strict restrictions on the passage of high-level adventurers and main gods of various familias, conducting inspections on those entering the city.
The Jali Fu Familia, as one of the world forces outside the city, if they entered the labyrinth city, they would almost certainly be thoroughly inspected by the Guild, and their arrival would immediately be known by the city's various familias. It is impossible to keep this a secret.
